"Reliable experimental method for determination of photoacidity revealed by quantum chemical calculations"

Joonyoung Francis Joung,Minseok Jeong and Sungnam Park*

Phys. Chem. Chem. Phys., 24, 21714-21721 (2022) (Link) († equally contributed.)


"Solvent mediated thermodynamically favorable helical supramolecular self-assembly: recognition behavior towards achiral and chiral analytes"

Meenal Kataria, Youngseo Kim, Hong Diem Chau, Na Yeon Kwon, Yongju Hong, Taekyung Kim, Jaewan Ko, Myung Kook Son,

Joona Bang, Sungam Park, Hugh I. Kim, Kwangyeol Lee and Dong Hoon Choi*

J. Mater. Chem. C, 10, 10679-10685 (2022) (Link) († equally contributed.)


"Promoted Type I and II ROS Generation by a Covalent Organic Framework through Sonosensitization and PMS Activation"

Dong Won Kang, Ji Hyeon Kim, Jong Hyeon Lim, Youngseo Kim, Minjung Kang, Jinwoo Shin, Subin Son, Hongryeol Yun, Sungnam Park, Jin Young Lee*, Jong Seung Kim*, and Chang Seop Hong*

ACS Catal., 12, 9621-9628 (2022) (Link) († equally contributed.)


"Deep learning for development of organic optoelectronic devices: efficient prescreening of hosts and emitters in deep-blue fluorescent OLEDs"

Minseok Jeong, Joonyoung F. Joung, Jinhyo Hwang, Minhi Han, Chang Woo Koh, Dong Hoon Choi*, Sungnam Park*

npj Comput. Mater., 8, 147 (2022) (Link) († equally contributed.)


"Sceptrin-Au Nano-Aggregates (SANA) for Overcoming Drug-resistant Gram-negative Bacteria"

Jong Min An, Sangrim Kang, Chang Woo Koh, Sungnam Park, Myung Sook Oh*, and Dokyoung Kim*  

Nanoscale Horiz., 7, 873-882 (2022) (Link) († equally contributed.)


"Improved Photovoltaic Performance of Ternary All-Polymer Solar Cells by Incorporating a New Y6-based Polymer Acceptor and PC61BM"

Hong Diem Chau, Meenal Kataria, Na Yeon Kwon, Su Hong Park, Youngseo Kim, Hungu Kang, Amit Kumar Harit, Han Young Woo, Hyo Jae Yoon, Sungnam Park, Min Ju Cho and Dong Hoon Choi*

Macromol. Res., 30, 587-596 (2022) (Link)


"Development of a fluorescent nanoprobe based on an amphiphilic single-benzene-based fluorophore for lipid droplets detection and its practical applications"

Yuna Jung, Ji Hye Jin, Youngseo Kim, Ji Hyeon Oh, Heechang Moon, Huisu Jeong, Jaehoon Kim, Yoon Kyung Park, Yohan Oh, Sungnam Park, and Dokyoung Kim*

Org. Biomol. Chem., 20, 5423-5433 (2022) (Link)


"Beyond Woodward–Fieser Rules: Design Principles of Property-Oriented Chromophores Based on Explainable Deep Learning Optical Spectroscopy"

Joonyoung F. Joung, Minhi Han, Minseok Jeong, and Sungnam Park*

J. Chem. Inf. Model., 62, 2933–2942 (2022) (Link) Journal Cover († equally contributed.)


"기계 학습 기반 분자의 분광 특성 예측 시스템 및 그 방법"

 박성남, 정준영, 한민희, 정민석, 최동훈,

특허 제 10-2392500 호, 등록일: 2022년 4월 26일


"Photocatalytic detoxification of a sulfur mustard simulant under realistic conditions by imidazoline-based porous organic polymer composites"

 Hyojin Kim, Jinwoo Shin, Dong Won Kang, Youngseo Kim, Ji Hyeon Kim, Minjung Kang, Jong Hyeak Choe, Sungnam Park*, Jong Seung Kim*, and Chang Seop Hong*

Cell Reports Physical Science, 18, 100888 (2022) (Link) († equally contributed.)


"High-efficiency solution-processed green thermally activated delayed fluorescence OLEDs using a polymer-small molecule mixed host"

Seunguk Cho, Na Yeon Kwon, Chai Won Kim, Hyoseong Lee, Jung Min Ha, Hyung Jong Kim, Han Young Woo, Sungnam Park, Min Ju Cho* and Dong Hoon Choi *

Polym. Chem., 13, 1824 (2022) (Link)


"Pyridine-NBD: A homocysteine-selective fluorescent probe for glioblastoma (GBM) diagnosis based on a blood test"

Youngwoong Kim†, Jong Min An†, Jaehoon Kim†, Tamrin Chowdhury, Hyeon Jong Yu, Kyung-Min Kim, Ho Kang, Chul-Kee Park, Joonyoung F.Joung*, Sungnam Park*, Dokyoung Kim*

Anal. Chim. Acta, 1202, 339678 (2022) (Link) († equally contributed.)


"Donor-σ-Acceptor Dyad-Based Polymers for Portable Sensors: Controlling Photoinduced Electron Transfer via Tuning the Frontier Molecular Orbital Energies of Acceptors"

Na Yeon Kwon†, Youngseo Kim†, Meenal Kataria†, Su Hong Park, Seunguk Cho, Amit Kumar Harit, Han Young Woo, Min Ju Cho, Sungnam Park*, and Dong Hoon Choi*

Macromolecules, 55, 1609-1619 (2022) (LinkJournal Cover († equally contributed.)


"An unconventional nano-AIEgen originating from a natural plant polyphenol for multicolor bioimaging"

Lei Lu†, Mengyao Yang†, Youngseo Kim†, Tingting Zhang, Nahyun Kwon, Haidong Li, Sungnam Park*, and Juyoung Yoon*

Cell Reports Physical Science, 3, 100745 (2022) (Link) († equally contributed.)


"우리 실험실은요 - 초고속분광학연구실"


화학세계, 2022년 1월호, 78-80​​  (Link)



"Aryl-Annulated [3,2-a] Carbazole-Based Deep-Blue Soluble Emitters for High-Efficiency Solution-Processed Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes with CIEy <0.1"

Jinhyo Hwang, Chang Woo Koh, Jung Min Ha, Han Young Woo, Sungnam Park*, Min Ju Cho*, and Dong Hoon Choi*

ACS Appl. Mater. Interfaces, 13, 61454-61462 (2021) (Link)


"Exciton energy transfer and bi-exciton annihilation in the emitting layers of thermally activated delayed fluorescence-based OLEDs"

Hyunchul Kang, Han Jin Ahn, Gyeong Woo Kim, Ji-Eun Jeong, Han Young Woo, Jun-Yun Kim,* and Sungnam Park*

J. Mater. Chem. C, 21, 15141-15149 (2021) (Link)


"Novel V-Shaped Bipolar Host Materials for Solution-Processed Thermally Activated Delayed Fluorescence OLEDs"

Dong Won Lee, Jinhyo Hwang, Hyung Jong Kim, Hyoseong Lee, Jung Min Ha, Han Young Woo, Sungnam Park*, Min Ju Cho*, and Dong Hoon Choi*

ACS Appl. Mater. Interfaces, 13, 49076-49084 (2021) (Link)


"Access to the Triplet Excited States of Heavy-Atom-Free Boron-Dipyrromethene Photosensitizers via Radical Pair Intersystem Crossing for Image-Guided Tumor-Targeted Photodynamic Therapy"

Van-Nghia Nguyen, Jeongsun Ha, Chang Woo Koh, Bokyeong Ryu, Gyoungmi Kim, Jae Hak Park, C-Yoon Kim*, Sungnam Park*, and Juyoung Yoon*

Chem. Mater., 33, 7889-7896 (2021) († equally contributed.)​​​​ (Link)


"Fullerene-Based Triads with Controlled Alkyl Spacer Length as Photoactive Materials for Single-Component Organic Solar Cells"

Young Woong Lee, Jiwoo Yeop, Hyojin Lim, Won-Woo Park, Joonyoung Francis Joung, Sungnam Park, Oh-Hoon Kwon*, Jin Young Kim*, and Han Young Woo* 

ACS Appl. Mater. Interfaces, 13, 43174-43185 (2021)​​​​​​​ (Link)


"A Simple Route toward Next-Generation Thiobase-Based Photosensitizers for Cancer Theranostics"

Van-Nghia Nguyen, Seonye Heo, Chang Woo Koh, Jeongsun Ha, Gyoungmi Kim, Sungnam Park*, and Juyoung Yoon*

ACS Sens. 6, 3462-3467 (2021)​​​​​​​​ (Link)


"Singlet Fission Dynamics of Colloidal Nanoparticles of a Perylenediimide Derivative in Solutions"

Youngseo Kim, Minhi Han, Chiho Lee, and Sungnam Park*

J. Phys. Chem. B, 125, 7967-7974 (2021)​​​​​​​​ (Link) Journal Cover


"Photo-Fenozyme Nanoparticles Based on Fe(II)-Coordination-Driven Cyanine-Based Amino Acid Assembly for Photodynamic Ferrotherapy"

Jingjing Han†, Hyunchul Kang†, Xingshu Li, Nahyun Kwon, Haidong Li, Sungnam Park*, and Juyoung Yoon*

ACS Appl. Nano Mater., 4, 5954–5962 (2021)​​​​​ († equally contributed.)​​​​ (Link)


"Ultra-Deep-Blue Aggregation-Induced Delayed Fluorescence Emitters: Achieving Nearly 16% EQE in Solution-Processed Nondoped and Doped OLEDs with CIEy < 0.1"

Hyung Jong Kim, Hyunchul Kang, Ji-Eun Jeong, Su Hong Park, Chang Woo Koh, Chai Won Kim, Han Young Woo, Min Ju Cho,* Sungnam Park,* Dong Hoon Choi*

Adv. Func. Mater., 31, 2102588 (2021)​​​​​​​​ (Link)


"Switchable stimulated Raman scattering microscopy with photochromic vibrational probes"

Jianpeng Ao, Xiaofeng Fang, Xianchong Miao, Jiwei Ling, Hyunchul Kang, Sungnam Park, Changfeng Wu*, and Minbiao Ji*

Nat. Commun., 12, 3089 (2021)​​​​​ (Link)


"Rational Molecular Design of Azaacene-Based Narrowband Green-Emitting Fluorophores: Modulation of Spectral Bandwidth and Vibronic Transitions"

Jung Min Ha, Hye Beom Shin, Joonyoung Francis Joung, Won Jae Chung, Ji-Eun Jeong, Sangin Kim, Seon Hyoung Hur, Suk-Young Bae, Jun-Yun Kim, Jun Yeob Lee*, Sungnam Park*, and Han Young Woo*

ACS Appl. Mater. Interfaces, 13, 26227-26236 (2021) († equally contributed.)​​​​ (Link)


"Pyrazine-based hollow spherical self-assemblies: A portable tool for detection of volatile organic amines"

Meenal Kataria, Jinhyo Hwang, Hong Diem Chau, Na Yeon Kwon, Dong Won Lee, Taekyung Kim, Kwangyeol Lee, Youngseo Kim, Sungnam Park, Dong Hoon Choi*

Sensor. Actuat. B-Chem., 343, 130110 (2021)​​​​​ (Link)


"Enhanced Optical Properties and Stability of CsPbBr3 Nanocrystals Through Nickel Doping"

Hayeong Kim, Sa‐Rang Bae, Tae Hyung Lee, Hyoseong Lee, Heemin Kang, Sungnam Park, Ho Won Jang*, Soo Young Kim*

Adv. Funct. Mater., 31, 2102770(2021)​​​​​ (Link)


"Deep Learning Optical Spectroscopy Based on Experimental Database: Potential Applications to Molecular Design"

Joonyoung F. Joung†, Minhi Han†, Jinhyo Hwang, Minseok Jeong, Dong Hoon Choi, and Sungnam Park*

JACS Au, 1, 427-438 (2021)​​​ († equally contributed.)​​ (Link) Journal Cover


"Donor engineered Deep-Blue emitters for tuning luminescence mechanism in Solution-Processed OLEDs"

Jinhyo Hwang†, Hyunchul Kang†, Ji-Eun Jeong, Han Young Woo, Min Ju Cho*, Sungnam Park*, Dong Hoon Choi*

Chem. Eng. J., 416, 129185 (2021)​​​ († equally contributed.)​​ (Link)


"Ligand-Assisted Direct Photolithography of Perovskite Nanocrystals Encapsulated with Multifunctional Polymer Ligands for Stable, Full-Colored, High-Resolution Displays"

Jaewan Ko, Kyungyeon Ma, Joonyoung F. Joung, Sungnam Park, and Joona Bang*

Nano Lett., 21, 2288-2295 ​(2021)​​​  (Link)


"인공지능을 활용한 분광학 분야의 최근 연구"

정준영, 한민희, 정민석, 박성남*

화학세계, 2021년 6월호, 13-19​​  (Link)



"Light-directed trapping of metastable intermediates in a self- assembly process" 

Joonsik Seo†, Joonyoung F. Joung†, Sungnam Park*, Young Ji Son, Jaegeun Noh, and Jong-Man Kim*

Nat. Commun., 11, 6260 (2020)​ († equally contributed.)​​  (Link)


"Highly Efficient Aggregation-Induced Red-Emissive Organic Thermally Activated Delayed Fluorescence Materials with Prolonged Fluorescence Lifetime for Time-Resolved Luminescence Bioimaging" 

Sujie Qi†, Sangin Kim†, Van-Nghia Nguyen*, Youngmee Kim, Guangle Niu, Gyoungmi Kim, Sung-Jin Kim, Sungnam Park*, and Juyoung Yoon*

ACS Appl. Mater. Interfaces, 12, 51293-51301 (2020)​ († equally contributed.) (Link)


"Universal Polymeric Bipolar Hosts for Highly Efficient Solution-Processable Blue and Green Thermally Activated Delayed Fluorescence OLEDs" 

Jin Hyo Hwang†, Chae Yeong Kim†, Hyunchul Kang, Ji-Eun Jeong, Han Young Woo, Min Ju Cho*, Sungnam Park, Dong Hoon Choi*

J. Mater. Chem. C, 8, 16048-16056, (2020)​ († equally contributed.)​​ (Link)


"Dynamics of Photoinduced Energy Transfer in Fully and Partially Conjugated Polymers Bearing pi-Extended Donor and Acceptor Monomers " 

Youngseo Kim†, Na Yeon Kwon†, Su Hong Park, Min Ju Cho, Dong Hoon Choi*Sungnam Park*

Front. Chem., 8, 605403 (2020) († equally contributed.)​​  (Link)


"Structure, photoluminescence, and magnetic properties of a Mn(II)-based metal-organic framework" 

Hyojin Kim†, Sunhwi Eom†, Sora Park†, Dong Won Kang, Mengmeng Wang, Youngseo Kim, Sungnam Park, Wei Shi* , Chang Seop Hong* 

New J. Chem., 44, 18694-18702 (2020)​​ (Link)


"Direct Photolithographic Patterning of Colloidal Quantum Dots Enabled by UV-Crosslinkable & Hole-Transporting Polymer Ligand" 

Jaewan Ko, Jun Hyuk Chang, Byeong Guk Jeong, Hyung Jong Kim, Joonyoung Francis Joung, Sungnam Park, Dong Hoon Choi*, Wan Ki Bae*, and Joona Bang* 

ACS Appl. Mater. Interfaces, 12, 42153-42160 (2020)​ (Link)


"DB for chromophore" 

Joonyoung F. Joung†, Minhi Han†, Minseok Jeong, and Sungnam Park

Figshare, (2020) († equally contributed.) ​ (Link)


"Experimental database of optical properties of organic compounds"

Joonyoung F. Joung†, Minhi Han†, Minseok Jeong, and Sungnam Park*

Sci. Data, 7, 295 (2020) († equally contributed.) (Link)


“Visualizing Mitochondria and Mouse Intestine with a Fluorescent Complex of a Naphthalene-based Dipolar Dye and Serum Albumin”

Jong Min An, Heejo Moon, Yejin Kim, Sangrim Kang, Youngseo Kim, Yuna Jung, Sungnam Park, Peter Verwilst*, Byung Moon Kim*, Jae Seung Kang* and Dokyoung Kim*

J. Mater. Chem. B, 8, 7642-7651 (2020) (Link)


“High Performance Solution-Processable Thermally Activated Delayed Fluorescent OLEDs Realized via the Adjustment of the Composition of the Organoboron Acceptor Monomer in Copolymer Host Materials”

Mallesham Godumala, Jinhyo Hwang, Hyunchul Kang, Ji-Eun Jeong, Amit Harit, Min Ju Cho, Han Young Woo, Sungnam Park*, and Dong Hoon Choi*

ACS Appl. Mater. Interfaces, 12, 35300-35310 (2020) (Link)


“Green-, Red-, and NIR-Emitting Polymer Dot Probes for Simultaneous Multicolor Cell Imaging with a Single Excitation Wavelength ”

Ji-Eun Jeong, Mohammad Afsar Uddin, Hwa Sook Ryu, Hee-Chang Kim, Minsu Kang, Joonyoung Francis Joung, Sungnam Park, Sang-Hee Shim, and Han Young Woo*

Chem. Mater., 32, 6685-6696 (2020) (Link)


“Penta-fluorophenol: A Smiles rearrangement-inspired cysteine-selective fluorescent probe for imaging of human glioblastoma ”

Jong Min An, Sangrim Kang, Eugene Huh, Yejin Kim, Dahae Lee, Hyejung Jo, Joonyoung F. Joung, Veronica Jihyun Kim, Ji Yeoun Lee, Yun Sik Dho, Yuna Jung, Sojin Kim, Tamrin Chowdhury, Sungnam Park*, Jae Seung Kang*, Myung Sook Oh*, Chul-Kee Park*, and Dokyoung Kim*

Chem. Sci., 11, 5658-5668 (2020) (Link)


“A thiocoumarin-based turn-on fluorescent probe for hypochlorite detection and its application to live-cell imaging”

Van-Nghia NguyenSeonye HeoSangin Kim, K.M.K. Swamy, Jeongsun Ha, Sungnam Park*, and Juyoung Yoon*

Sensor. Actuat. B-Chem., 317, 128213 (2020) († equally contributed.) (Link)


“Articulated Structures of D-A Type Dipolar Dye with AIEgen: Synthesis, Photophysical Properties, and Applications”

Na Hee Kim†, Byeong Wook Kim†, Youngseo Kim†, Junho K. Hur, Junang Jung, Yohan Oh, Sungnam Park*, B. Moon Kim*, and Dokyoung Kim*

Materials, 131939 (2020) († equally contributed.) (Link)


“Achievement of high efficiency with extremely low efficiency roll-off in solution-processed thermally activated delayed fluorescence OLEDs manufactured using xanthone-based bipolar host materials”

Chae Yeong Kim†, Chiho Lee†, Hyung Jong Kim, Jinhyo Hwang, Mallesham Godumala, Ji-Eun Jeong, Han Young Woo, Min Ju Cho*, Sungnam Park*, and Dong Hoon Choi*

J. Mater. Chem. C,  8, 6780-6787 (2020) († equally contributed.) (Link)


“Structural isomers of 9-(pyridin-2-yl)-9H-carbazole in combination with 9′H-9,3':6′,9″-tercarbazole and their application to high efficiency solution processed green TADF OLEDs”

Jinhyo Hwang, Jiwon Yoon, Chae Yeong Kim, Suna Choi, Hyunchul Kang, Jun Yun Kim, Dae-Wi Yoon, Chang Wook Han, Sungnam Park, Min Ju Cho,* and Dong Hoon Choi*

Dyes Pigm., 179, 108403 (2020) (Link)


“Rational design of a novel isoindigo-based conjugated terpolymer with panchromatic absorption and its application to polymer solar cells”

Na Yeon Kwon, Hyunchul Kang, Su Hong Park, Hyung Jong Kim, Chae Yeong Kim, Sungnam Park, Min Ju Cho,* and Dong Hoon Choi*

Dyes Pigm., 179, 108391 (2020) (Link)



박성남, 정준영 지음

사이플러스, ISBN 979-11-88731-18-3 (2020) (Link)


“Molecular Design of Highly Efficient Heavy‐Atom‐Free Triplet BODIPY Derivatives for Photodynamic Therapy and Bioimaging”

Van-Nghia Nguyen,† Yubin Yim,† Sangin Kim,† Bokyeong Ryu, K. M. K. Swamy, Gyoungmi Kim, Nahyun Kwon, C-Yoon Kim,* Sungnam Park,* and Juyoung Yoon*

Angew. Chem. Int. Ed., 59, 8957-8962 (2020) († equally contributed.) (Link)


“Chemically resistant and thermally stable quantum dots prepared by shell encapsulation with cross-linkable block copolymer ligands”

Jaewan Ko, Byeong Guk Jeong, Jun Hyuk Chang, Joonyoung F. Joung, Suk-Young Yoon, Doh C. Lee, Sungnam Park, June Huh, Heesun Yang, Wan Ki Bae,* Se Gyu Jang,* and Joona Bang*

NPG Asia Mater., 12, 19 (2020) (Link)


“Rational Design of Carbazole- and Carboline-Based Polymeric Host Materials for Realizing High-Efficiency Solution-Processed Thermally Activated Delayed Fluorescence Organic Light-Emitting Diode”

Jinhyo Hwang, Chiho Lee, Ji-Eun Jeong, Chae Yeong Kim, Han Young Woo, Sungnam Park, Min Ju Cho*, and Dong Hoon Choi*

ACS Appl. Mater. Interfaces., 12, 8485-8494 (2020) (Link)


“5H-Benzo[d]Benzo[4,5]Imidazo[2,1-b][1,3]Thiazine as a Novel Electron-Acceptor Cored High Triplet Energy Bipolar Host Material for Efficient Solution-Processable Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes”

Mallesham Godumala, Jiwon Yoon, Seo Yeon Park, Chiho Lee, Youngseo Kim, Ji-Eun Jeong, Sungnam Park, Han Young Woo, Min Ju Cho, and Dong Hoon Choi*

Front. Chem., 8, 61 (2020) (Link)


“Pyrimidine-based Bipolar Host Materials for High Efficiency Solution Processed Green Thermally Activated Delayed Fluorescent OLEDs”

Jiwon Yoon, Chiho Lee, Su Hong Park, Dong Won Kang, Hyojin Kim, Ji-Eun Jeong, Han Young Woo, Chang Seop Hong, Sungnam Park, Min Ju Cho, and Dong Hoon Choi*

J. Mater. Chem. C, 8, 2196-2204 (2020) (Link)


“Significantly Improved Morphology and Efficiency of Nonhalogenated Solvent‐Processed Solar Cells Derived from a Conjugated Donor–Acceptor Block Copolymer”

Su Hong Park, Youngseo Kim, Na Yeon Kwon, Young Woong Lee, Han Young Woo, Weon-Sik Chae, Sungnam Park, Min Ju Cho*, and Dong Hoon Choi*

Adv. Sci., 7, 1902470 (2020) (Link)


“A new visible light triggered Arrhenius photobase and its photo-induced reactions”

Joonyoung F. Joung, Jeeun Lee, Joungin Hwang, Kihang Choi*, and Sungnam Park*

New J. Chem., 44, 668-673 (2020) (Link)


“Macrocyclic Diacetylene-Terthiophene Cocrystal: Molecular Self-Assembly, Topochemical Polymerization and Energy Transfer”

Kwangmin Bae, Jung-Moo Heo, Mohammed Khazi, Joonyoung Francis Joung, Sungnam Park, Youngmee Kim, and Jong-Man Kim

Cryst. Growth Des., 20, 434-441 (2020) (Link)


“Visualization of UV by Nanopatterned Down‐Shifting Materials Mimicking Human Retinal Cone Cells”

Wonbae Sohn, Heeyeon Park, Gang Yeol Yoo, Chiho Lee, Sungnam Park, and Woong Kim*

Adv. Funct. Mater., 30, 1905131 (2020) (Link)


“Origin of strong red emission in Er3+-based upconversion materials: Role of intermediate states and cross relaxation”

Chiho Lee†, Heeyeon Park†, Woong kim*, and Sungnam Park*

Phys. Chem. Chem. Phys., 21, 24026-24033 (2019) († equally contributed.) (Link)


“An Excellent Bipolar Host Material Exhibiting EQE of 24.0% with Small Efficiency Roll-off in Solution-processable Thermally Activated Delayed Fluorescence OLEDs”

Mallesham Godumala, Jiwon Yoon, Choel Hun Jeong, Chiho Lee, Ji-Eun Jeong, Sungnam Park, Han Young Woo, Min Ju Cho, and Dong Hoon Choi*

J. Mater. Chem. C, 7, 13930-13938 (2019) (Link)


“An emerging molecular design approach to heavy-atom-free photosensitizers for enhanced photodynamic therapy under hypoxia”

Van-Nghia Nguyen†,Sujie Qi†, Sangin Kim†, Nahyun Kwon, Gyoungmi Kim, Yubin Yim, Sungnam Park*, and Juyoung Yoon*

J. Am. Chem. Soc., 141, 16243-16248 (2019) († equally contributed.) (Link)


“Chromenopyrazole-Based Bipolar Host Materials for Solution-Processable Thermally Activated Delayed Fluorescence OLEDs Exhibiting High Efficiency and Low Roll-off”

Mallesham Godumala, Jiwon Yoon, Chiho Lee, Ji-Eun Jeong, Sungnam Park, Han Young Woo, Min Ju Cho, and Dong Hoon Choi*

Chem. Comm., 55, 12952-12955 (2019) (Link)


“Facile One-pot Polymerization of a Fully Conjugated Donor-acceptor Block Copolymer and its Application to Efficient Single Component Polymer Solar Cells”

Chang Geun Park†, Su Hong Park†, Youngseo Kim†, Thanh Luan Nguyen, Han Young Woo, Hungu Kang, Hyo Jae Yoon, Sungnam Park*, Min Ju Cho*, and Dong Hoon Choi*

J. Mater. Chem. A, 7, 21280-21289 (2019) († equally contributed.) (Link)


“Solution-processed white organic light-emitting diodes with blue fluorescent and orange-red thermally activated delayed fluorescent dendritic luminogens”

Jiwon Yoon, Suna Choi, Cheol Hun Jeong, Seong Keun Kim, Hyuna Lee, Youngseo Kim, Jang Hyuk Kwon, Sungnam Park, Min Ju Cho*, and Dong Hoon Choi*

Dyes Pigm. 170, 107650 (2019) (Link)


“A Schiff Base Fluorescence Enhancement Probe for Fe(III) and Its Sensing Applications in Cancer Cells”

Na Hee Kim, Junho Lee, Sungnam Park, Junyang Jung* and Dokyoung Kim*

Sensors 19, 2500 (2019) (Link)


“A Bright Blue Fluorescent Dextran for Two-photon in Vivo Imaging of Blood Vessels”

Seo Hyeon Lee†, Young Ho Choe†, Rae Hyung Kang†, Yu Rim Kim, Na Hee Kim, Sangrim Kang, Youngseo Kim, Sungnam Park, Young-Min Hyun*, and Dokyoung Kim*

Bioorganic Chem. 89, 103019 (2019) († equally contributed.) (Link)


“Blue-Emission of α-GaN Colloidal Quantum Dots via Zn Doping”

Yun Chang Choi, Hyunjin Kim, Chiho Lee, Juhee Son, Hionsuck Baik, Sungnam Park, Jaekyun Kim, and Kwang Seob Jeong*

Chem. Mater. 31, 5370-5375 (2019) (Link)


“High Stability of a Donor−Acceptor Type Oxazepine-Containing Fluorophore and Its Applications in Cellular Imaging and Two-Photon Deep Tissue Imaging”

Heejo Moon†, Yuna Jung†, Youngseo Kim†, Byeong Wook Kim, Jin Gyu Choi, Na Hee Kim, Myung Sook Oh, Sungnam Park*, B. Moon Kim*, and Dokyoung Kim*

Org. Lett., 21, 3891-3894 (2019) († equally contributed.) (Link)


“Covalently Linked, Perylene diimide Polydiacetylene Nanofibers Display Enhanced Stability and Photocurrent with Reversible FRET Phenomenon”

Joonsik Seo, Chandra Kantha, Joonyoung F. Joung, Sungnam Park,* Raz Jelinek, and Jong-Man Kim*

Small 15, 1901342 (2019) (Link)


“Hydrazine Exposé: The Next-Generation Fluorescent Probe”

Yuna Jung†, In Gyoung Ju†, Young Ho Choe, Youngseo Kim, Sungnam Park, Young-Min Hyun*, Myung Sook Oh*, and Dokyoung Kim*

ACS Sens. 4, 441-449 (2019) († equally contributed.) (Link)


“Synthesis, Structure, and Photoluminescence Properties of a Metal‐Organic Framework with Hexagonal Channels: Selective Turn‐On Sensing for Mg2+ Ion”

Sunhwi Eom†, Sora Park†, Jeong Hwa Song, Woo Ram Lee, Han Geul Lee, Dong Won Kang, Joonyoung Fransic Joung, Sungnam Park, Dohyun Moon, and Chang Seop Hong*

Eur. J. Inorg. Chem. 2019, 330-335 (2019) († equally contributed.) (Link)


“A wavelength-tunable and facilely functionable D-A type naphthalene core skeleton: Synthesis, photophysical property, and bio-imaging applications for cells and tissues”

Yuna Jung†, Youngseo Kim†, Na Hee Kim, Junho Lee, Kang-Hoon Kim, Junyang Jung, Youngbuhm Huh, Hyeung-Jin Jang*, Jinmyoung Joo*, Sungnam Park*, Dokyoung Kim*

Dyes Pigm. 162, 104-111 (2019) († equally contributed.) (Link)


“2-(Benzothiazol-2-yl)pyren-1-ol, a new excited state intramolecular proton transfer-based fluorescent sensor for nitroaromatic compounds”

Ying Hu†, Joonyoung F. Joung†, Ji-Eun Jeong, Yerin Jeong, Han Young Woo, Yuanbin She, Sungnam Park*, and Juyoung Yoon*

Sens. Actuators B 280, 298-305 (2019) († equally contributed.) (Link)



“Discriminative Molecular Detection Based on Competitive Absorption by a Luminescent Metal-Organic Framework”

Sunhwi Eom†, Han Geul Lee†, Dong Won Kang, Minjung Kang, Hyojin Kim, Youngseo Kim, Sungnam Park, Dohyun Moon, and Chang Seop Hong*

ACS Appl. Mater. Interfaces, 10, 40372-40377 (2018) († equally contributed.) (Link)


“A naphthoimidazolium-cholesterol derivative as a ratiometric fluorescence based chemosensor for the chiral recognition of carboxylates”

Xin Zhang†, Gyeongju Ko†, Joonyoung F. Joung†, Meng Li, K.M.K. Swamy, Yerin Jeong, Dayoung Lee, Yifan Liu, Songyi Lee,* Sungnam Park,* Tony D. James* and Juyoung Yoon*

Chem. Commun., 54, 13264-13267 (2018) († equally contributed.) (Link)


“Elucidating the Role of Molecule-Electrode Interfacial Defects in Charge Tunneling Characteristics of Large-area Junctions”

Gyu Don Kong, Junji Jin, Martin M. Thuo, Hyunsun Song, Joonyoung Francis Joung, Sungnam Park, and Hyo Jae Yoon*

J. Am. Chem. Soc., 140, 12303-12307 (2018) (Link)


“Fluorescent Organic Glass with Unique Optical and Mechanical Properties”

Kahoe Ku, Joonyoung F. Joung, Heeyeon Park, Myeong-Geun Kim, Sungnam Park, Woong Kim*

Adv. Funct. Mater., 28, 1081394, (2018) (Link)


"High-Performance Polymer Solar Cell with Single Active Material of Fully Conjugated Block Copolymer Composed of Wide-Band gap Donor and Narrow-Band gap Acceptor Blocks"

Ji Hyung Lee, Chang Geun Park, Aesun Kim, Hyung Jong Kim, Youngseo Kim, Sungnam Park, Min Ju Cho*, and Dong Hoon Choi*

ACS Appl. Mater. Interfaces, 10, 18974-18983 (2018) (Link)


"Cationic Effect on the Equilibria and Kinetics of the Excited-State Proton Transfer Reaction of a Photoacid in Aqueous Solutions"

Joonyoung F. Joung, Sangin Kim, and Sungnam Park*

J. Phys. Chem. B, 122, 5087-5093 (2018) († equally contributed.) (Link)


"Unconventional Three-armed Luminogens Exhibiting Both Aggregation-Induced Emission and Thermally Activated Delayed Fluorescence Resulting in High-Performing Solution-Processed OLEDs"

Seo Yeon Park, Suna Choi, Gi Eun Park, Hyung Jong Kim, Chiho Lee, Ji su Moon, Si Woo Kim, Sungnam Park, Jang Hyuk Kwon, Min Ju Cho*, and Dong Hoon Choi*

ACS Appl. Mater. Interfaces, 10, 14966-14977 (2018) (Link)


"Topochemical polymerization of macrocyclic diacetylene with a naphthalene moiety for a tubular-shaped polydiacetylene chromophore"

Chandra Kantha,  Hansol Kim, Youngmee Kim, Jung Moo Heo, Joonyoung F. Joung, Sungnam Park, and Jong-Man Kim*

Dyes Pigm., 154, 199-204 (2018) (Link)


"Solution-Processed Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes Using New Polymeric Emitter Containing Non-conjugated Cyclohexane Units"

Hyung Jong Kim, Chiho Lee, Mallesham Godumala, Suna Choi, Seo Yeon Park, Ji Su Moon, Sungnam Park*, and Dong Hoon Choi*

Polym. Chem., 9, 1318-1326 (2018) (Link)



"Novel dendritic large molecules as solutionprocessable thermally activated delayed fluorescent emitters for simple structured non-doped organic light emitting diodes"

Mallesham Godumala, Suna Choi, Hyung Jong Kim, Chiho Lee, Sungnam Park, Ji Su Moon, Kim Si Woo, Jang Hyuk Kown, Min Ju Cho, and Dong Hoon Choi*

J. Mater. Chem. C6, 1160-1170 (2018) (Link)


"Thin film fabrication of upconversion lanthanide-doped NaYF4 by a sol-gel method and soft lithographical nanopatterning"

Heeyeon Park, Gang Yeol Yoo, Min-Seop Kim, Kein Kim, Chiho Lee, Sungnam Park, and Woong Kim*

J. Alloys. Compd.728, 927-935 (2017) (Link)


"Ionic effect on the excited-state proton transfer reactions in aqueous solutions"

Joonyoung Francis Joung, Sangin Kim and Sungnam Park*

Phys. Chem. Chem. Phys., 19, 25509-25517  (2017) (Link)


"Fluorescent Labeling of Protein Using Blue-Emitting 8-Amino-BODIPY Derivatives"

Dokyoung Kim*, Donghee Ma, Muwoong Kim, Yuna Jung, Na Hee Kim, Chiho Lee, Seo Won Cho, Sungnam Park, Youngbuhm Huh, Junyang Jung, and Kyo Han Ahn

J. Fluoresc., 27, 6, 2231-2238 (2017) (Link)



"Selective Recognition of Fluoride by using a Benzobisimidazolium Derivative through Aggregation Induced Fluorescence"

Dayoung Lee, Chiho Lee, Eun Jin Jun, Minji Lee, Sungnam Park,* and Juyoung Yoon*

ChemistryOpen, 6, 476-479 (2017) († equally contributed.) (Link)

"Effect of ion-ligand binding on ion pairing dynamics studied by two-dimensional infrared spectroscopy"

YoungAh Kwon, Junho Lee, and Sungnam Park*

Phys. Chem. Chem. Phys., 19, 10889-10897 (2017) († equally contributed.) (Link)


"Structure-property relationship of metastable monoclinic potassium niobate (KNbO3) nanowires during phase transitions"

Seungwook Kim, Min-Seop Kim, Chiho Lee, Sungnam Park, Won Il Cho, and Woong Kim*

J. Alloys. Compd., 709, 415-421 (2017) (Link)


"Chromogenic Tubular Polydiacetylenes from Topochemical Polymerization of Self-Assembled Macrocyclic Diacetylenes"

Jung-Moo Heo, Youngmee Kim, Seulki Han, Joonyoung F. Joung, Sang-hwa Lee, Sejin Han, Jaegeun Noh, Jaeyoun Kim, Sungnam Park, Haiwon Lee, Yoon Mi Choi, Young-Sik Jung, and Jong-Man Kim*

Marcromolecules, 50, 900-913 (2017) (Link)


“Iridium Complex Bearing Urea Groups as a Phosphorescent Chemosensor for Chiral Anion Recognition”

Ying Hu†, Yinan Li†, Joonyoung F. Joung†, Jun Yin, Sungnam Park, Juyoung Yoon*, and Myung Ho Hyun*

Sens. Actuators B, 241, 224-229 (2017) († equally contributed.) (Link)



“Artificial Photocatalytic System Using Polydiacetylene-(-NH-phen)Ru(bpy)2 for Cofactor Regeneration and CO2 Reduction”

 Soojin Kim,  Songyi Lee, Tikum Florence Anjong, Ha Yoon Jang, Ji-Yeong Kim, Chiho Lee, Sungnam Park, Hye Jin Lee*, Juyoung Yoon*, and Jinheung Kim*

J. Phys. Chem. C120, 28407-28414 (2016) (Link)


“Photoinduced Reversible Phase Transition of Azobenzene-Containing Polydiacetylene Crystals"

Woohyun Baek, Jung-Moo Heo, Seungwhan Oh, Sang-hwa Lee, Jaeyong Kim, Joonyoung Francis Joung, Sungnam Park, Hesson Chung and Jong-Man Kim*

Chem. Commun.52, 14059-14062 (2016) (Link)


“Effects of Backbone Planarity and Tightly Packed Alkyl Chains in the Donor−Acceptor Polymers for High Photostability”

Hyo Sang Lee, Hyeng Gun Song, Hyeseung Jung, Myung Hwa Kim, Changsoon Cho, Jung-Yong Lee, Sungnam Park, Hae Jung Son, Hui-Jun Yun, Soon-Ki Kwon, Yun-Hi Kim*, and BongSoo Kim*

Macromolecules49, 7844-7856 (2016) (Link)


 “Effect of Hydrogen-Bond on the Vibrational Relaxation and Orientational Relaxation Dynamics of HN3 and N3– in Solutions”

Chiho Lee, Hyewon Son, and Sungnam Park*

J. Phys. Chem. B120, 9723-9731 (2016) (Link)



 “Electronic relaxation dynamics of PCDA-PDA studied by transient absorption spectroscopy”

Joonyoung Francis Joung, Junwoo Baek, Youngseo Kim, Songyi Lee, Myung Hwa Kim, Juyoung Yoon*, and Sungnam Park*

Phys. Chem. Chem. Phys.18, 23096-23104 (2016) (Link)

“High-performance bipolar host materials for blue TADF devices with excellent external quantum efficiencies”

Ju Sik Kang, Tae Ryang Hong, Hyung Jong Kim, Young Hoon Son, Raju Lampande, Byoung Yeop Kang, Chiho Lee, Jong-Kwan Bin, Bang Sook Lee, Joong Hwan Yang, JinWuk Kim, Sungnam Park, Min Ju Cho*, Jang Hyuk Kwon*, and Dong Hoon Choi*

J. Mater. Chem. C4, 4512-4520 (2016) (Link)


 “Origin of the Reversible Thermochromic Properties of Polydiacetylenes Revealed by Ultrafast Spectroscopy”

Junwoo Baek†, Joonyoung Francis Joung†, Songyi Lee†, Hanju Rhee, Myung Hwa Kim, Sungnam Park*, and Juyoung Yoon*

J. Phys. Chem. Lett.7, 259-265 (2016) (Link)



 “Effect of NaCl Salts on the Activation Energy of Excited-State Proton Transfer Reaction of Coumarin 183”

Joonyoung Francis Joung,  Sangin Kim, and Sungnam Park*

J. Phys. Chem. B119, 15509-15515 (2015) (Link)


 “Complexation dynamics of CH3SCN and Li+ in acetonitrile studied by two-dimensional infrared spectroscopy”

YoungAh Kwon and Sungnam Park*

Phys. Chem. Chem. Phys.17, 24193-24200 (2015) (Link)


“Acid-base equilibrium dynamics in methanol and dimethyl sulfoxide probed by two-dimensional infrared spectroscopy”

Chiho Lee, Hyewon Son, and Sungnam Park*

Phys. Chem. Chem. Phys.17, 17557-17561 (2015) (Link)


“Vibrational Probing of the Hydrogen-Bond Structure and Dynamics of Water in Aqueous NaPF6 Solutions”

Chiho Lee†, Dayoung Nam†, and Sungnam Park*

New J. Chem.39, 3520-3527 (2015) (Link)


 “Synthesis and Photovoltaic Properties of a Low Band Gap Polymer for Organic Solar Cell”

Yong-Ho Woo, Hyo-Sang Lee, Sungnam Park, E-Joon Choi*, and BongSoo Kim*

Polymer(Korea)39, 71-77 (2015) (Link)



“Effect of Ion-Molecule Interaction on Fermi-Resonance in Acetonitrile Studied by Ultrafast Vibrational Spectroscopy”

YoungAh Kwon, Chiho Lee, and Sungnam Park*

Chem. Phys.445, 38-45 (2014) (Link)


“Temperature-Dependent Dynamics of Water in Aqueous NaPF6 Solution”

Dayoung Nam, Chiho Lee, and Sungnam Park*

Phys. Chem. Chem. Phys.16, 21747-21754 (2014) (Link)


“Construction and Molecular Understanding of an Unprecedented, Reversibly Thermochromic Bis-Polydiacetylene”

Songyi Lee, Joonseong Lee, Minji Lee, Yu Kyung Cho, Junwoo Baek, Jinwook Kim, Sungnam Park, Myung Hwa Kim, Rakwoo Chang*, and Juyoung Yoon*

Adv. Func. Mater.24, 3699-3705 (2014) (Link)


 “A New Phosphorescent Chemosensor Bearing Zn-DPA Sites for H2PO4- ”

Hye-bin Kim, Yifan Liu, Dayoung Nam, Yinan Li, Sungnam Park, Juyoung Yoon*, and Myung Ho Hyun*

Dyes and Pigments106, 20-24 (2014) (Link)


“Effect of asymmetric solubility of diketopyrrolopyrrole-based polymers and PC71BMs in a binary solvent system on the performance of bulk heterojunction solar cells”

Seon Kyoung Son, Hyo-Sang Lee, Jae Seung Ha, Kyung Hwan Kim, Hae Jung Son, Min Jae Ko, Honggon Kim, Doh-Kwon Lee, Jin Young Kim, Wonmok Lee, Sungnam Park, Dong Hoon Choi*, and BongSoo Kim*

Solar Energy Materials & Solar Cells124, 232–240 (2014) (Link)


“New Iridium Complexes with Two Pre-organized Urea Groups and Thiourea Groups as Phosphorescent Chemosensors for H2PO4- and Chiral Carboxylatese”

Yinan Li, Liu Yifan, Dayoung Nam, Sungnam Park, Juyoung Yoon*, and Myung Ho Hyun*

Dyes and Pigments, 100, 241-246 (2014) (Link)



“Real-Time Probing of Hydrogen-Bond Exchange Dynamics in Aqueous NaPF6 Solutions by Two-Dimensional Infrared Spectroscopy”

Hyewon Son, Dayoung Nam, and Sungnam Park*

J. Phys. Chem. B117, 13604-13613 (2013) (Link)


“Infrared Probes Based on Nitrile-Derivatized Prolines: Thermal Insulation Effect and Enhanced Dynamic Range”

Kwang-Hee Park, Jonggu Jeon, Yumi Park, Soyoung Lee, Hyeok-Jun Kwon, Cheonik Joo, Sungnam Park*, Hogyu Han*, and Minhaeng Cho*

J. Phys. Chem. Lett.4, 2105-2110 (2013) (Link)


“Correlation between Crystallinity, Charge Transport, and Electrical Stability in an Ambipolar Polymer Field-Effect Transistor Based on Poly(naphthalene-alt-diketopyrrolopyrrole)”

Beom Joon Kim, Hyo-Sang Lee, Joong Seok Lee, Sanghyeok Cho, Hyunjung Kim, Hae Jung Son, Honggon Kim, Min Jae Ko, Sungnam Park, Moon Sung Kang, Se Young Oh, BongSoo Kim*, and Jeong Ho Cho*

J. Phys. Chem. C117, 11479-11486 (2013) (Link)


“Ultrafast intermolecular vibrational excitation transfer from solute to solvent: Observation of intermediate states”

Hyewon Son, Kwang-Hee Park, Kyung-won Kwak*, Sungnam Park*, and Minhaeng Cho*

Chem. Phys.422, 37-46 (2013) (Link)


“Rotational dynamics of metal azide ion pairs in dimethylsulfoxide solutions”

Hyewon Son, YoungAh Kwon, Jinwoo Kim, and Sungnam Park*

J. Phys. Chem. B117, 2748-2756 (2013) (Link)


“Synthesis of monoclinic potassium niobate nanowires that are stable at room temperature”

Seungwook Kim, Ju-Hyuck Lee, Jaeyeon Lee, Sang-Woo Kim, Myung Hwa Kim, Sungnam Park, Haegeun Chung, Yong-Il Kim*, and Woong Kim*

J. Am. Chem. Soc.135, 6-9 (2013) (Link)