Polymer Ionic Materials Laboratory

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[46] Sehwan Park, Yoon-Je Choi, Soonyong So and Hyeong Jun Kim* "Low-Voltage Electrostatic Clutch Based on Bipolar Polyelectrolyte Heterojunctions", submitted (2023)

[41] Hyeonjung Park†​​, Boo Soo Ma†​, Youngkwon Kim, Dahye Lee, Sheng Li, Hyeong Jun Kim*, Taek-Soo Kim*, and Bumjoon J. Kim*, "Direct Measurement of the Thermomechanical Properties of Poly(3-hexylthiophene) Thin Films on Ionic Liquid Surface", Macromolecules, 2023, 56, 4,1633-1642


[40] 신조원, 전찬혁, 최윤제, 김형준* "고분자 전해질을 이용한 유연한 이온트로닉스 소자 (Polyelectrolyte for Soft Ionic Devices)" 고분자 과학과 기술 Polymer Science and Technology, 2022, 33, 2, 143-148 

[39] Yecheng Wang, Kun Jia, Shuwen Zhang, Hyeong Jun Kim, Yang Bai, Ryan C. Hayward, and Zhigang Suo* "Temperature Sensing Using Junctions Between Mobile Ions and Mobile Electrons" PNAS, 2022, 119, 4, e2117962119.

[38] Dahyun Jeong, Min Je Kim, Seungjin Lee, Jin-Woo Lee, Youngwoong Kim, Hyeong Jun Kim, Jeong Ho Cho*, and Bumjoon J. Kim* "Aqueous–Processable, Naphthalene Diimide–Based Polymers for Eco-Friendly Fabrication of High-Performance, n-Type Organic Electrolyte-Gated Transistors" Sci. China Chem. 2022, 65, 973 

[37] Youngkwon Kim, Hyeongjung Park, Jin Su Park, Jin-Woo Lee, Felix Sunjoo Kim, Hyeong Jun Kim*, and Bumjoon J. Kim* "Regioregularity-Control of Conjugated Polymers: From Synthesis, Properties, to Photovoltaic Device Applications" Journal of Materials Chemistry A, 2022, 10, 2672-2696


[36] 신희운, 김형준* "이온트로닉스 소자 구현을 위한 이온 전도성 고분자 네트워크 (Polymeric Networks for Soft Ionotronics Devices)" 신진연구자 칼럼 News&information for chemical engineers, 2021, 39, 6, 647

[35] Hyeonjung Park, Moon Jong Han, Youngkwon Kim, Eun Ji Kim, Hyeong Jun Kim*, Dong Ki Yoon*, and Bumjoon J. Kim*"Regioregularity Dependent Crystalline Structures and Thermal Transitions in Poly(3-dodecylthiophene)s" Chemistry of Materials, 2021, 33, 3312

[34] Jin-Woo Lee, Boo Soo Ma​, Hyeong Jun Kim, Taek-Soo Kim*, and Bumjoon J. Kim* "High Molecular Weight Electroactive Polymer Additives for Simultaneous Enhancement of Photovoltaic Efficiency and Mechanical Robustness in High-Performance Polymer Solar Cells" JACS Au, 2021, 1,5, 612-622

[33] Geon-U Kim, Cheng Sun​, Jin Su Park, Hyun Gyeong Lee, Dongchan Lee, Jin-Woo Lee, Hyeong Jun Kim, Shinuk Cho*, Yun-Hi Kim*, Soon-Ki Kwon*, and Bumjoon J. Kim* "Importance of Terminal Group Pairing of Polymer Donor and Small-Molecule Acceptor in Optimizing Blend Morphology and Voltage Loss of High-Performance Solar Cells" Advanced Functional Materials, 2021, 2100870 

[32] Jin-Woo Lee, Cheng Sun​, Boo Soo Ma, Hyeong Jun Kim, Cheng Wang, Jong Min Ryu, Chulhee Lim, Taek-Soo Kim*, Yun-Hi Kim*, Soon-Ki Kwon*, and Bumjoon J. Kim* "Efficient, Thermally Stable, and Mechanically Robust All-Polymer Solar Cells Consisting of the Same Benzodithiophene Unit-Based Polymer Acceptor and Donor with High Molecular Compatibility" Advanced Energy Materials, 2021,11, 2003367

(Before Sogang)


[31] Hyeong Jun Kim, Lindsay Paquin, Christopher W. Barney, Soonyong So, Baohong Chen, Zhigang Suo*, Alfred J. Crosby*, and Ryan C. Hayward* "Low-Voltage Reversible Electro-Adhesion of Ionoelastomer Junctions" Advanced Materials, 2020, 2000600

[30] Hyeong Jun Kim, Baohong Chen, Zhigang Suo*, and Ryan C. Hayward* "Ionoelastomer Junctions Between Polymer Networks of Fixed Anions and Cations" Science, 2020, 367, 773


[29] Hyeong Jun Kim, Jin-Seong Kim, Youngkwon Kim, Yeon Sik Jung, Bumjoon J. Kim*, and YongJoo Kim* "Regioregularity Controlled Phase Behavior for Poly(3-hexylthiophene): A Combined Study of Simple Coarse-Grained Simulation and Experiment" Polymer 2019, 178, 121569

[28] Hyeonjung Park, Boo Soo Ma, Jin-Seong Kim, Youngkwon Kim, Hyeong Jun Kim, Donguk Kim, Junghun Han, Felix Sunjoo Kim, Taek-Soo Kim, and Bumjoon J. Kim* "Regioregular-block-Regiorandom Poly(3-hexylthiophene) Copolymers for Mechanically-Robust and High-Performance Thin Film Transistors" Macromolecules 2019, 52, 7721

[27] Jin-Seong Kim, Jee-Eun Choi, Hyeonjung Park, Youngkwon Kim, Hyeong Jun Kim, Junghun Han, Jae Man Shin, and Bumjoon J. Kim* "Synthesis and Crystallization Behavior of Regioregular-block-Regiorandom poly(3- hexylthiophene) Copolymers" Polymer Chemistry 2019, 10, 3030


[26] Youngkwon Kim, Hyeong Jun Kim, Jin-Seong Kim, Hongseok Yun, Hyeon Jung Park, Junghun Han, and Bumjoon J. Kim* "Modulating Regioregularity of P3HT-based Amphiphilic Block Polymers to Control Solution Assembly from Nanowires to Micelles" Chemistry of Materials 2018 30, (21), 7912-7921

[25] Jung Eun Yang, Si Jae Park, Won Jun Kim, Hyeong Jun Kim, Bumjoon J. Kim, Hyuk Lee, Jihoon Shin, Sang Yup Lee* "One-Step Fermentative Production of Aromatic Polyesters From Glucose by Metabolically Engineered Escherichia Coli Strains" Nature Communications 2018 9, 79


[24] Taesu Kim, Joonhyeong Choi, Hyeong Jun Kim, Wonho Lee, Bumjoon J. Kim* "Comparative Study of Thermal Stability, Morphology, and Performance of All-Polymer, Fullerene–Polymer, and Ternary Blend Solar Cells Based on the Same Polymer Donor" Macromolecules 2017 50 (17), 6861-6871

[23] Hyeong Jun Kim, Moo Yeol Lee, Jin-Seong Kim, Jae-Han Kim, Hojeong Yu, Kin Liao, Taek-Soo Kim*, Joon Hak Oh*, and Bumjoon J. Kim* "Solution-Assembled Blends of Regioregularity-Controlled Polythiophenes for Coexistence of Mechanical Resilience and Electronic Performance" ACS Applied Materials & Interfaces 2017 9 (16), 14120-14128

[22] Jin-Seong Kim, Yongjoo Kim, Hyun-Jeong Kim, Hyeong Jun Kim, Hyunseung Yang, Yeon Sik Jung, Gila E. Stein, and Bumjoon J. Kim* "Regioregularity-Driven Morphological Transition of Poly(3-hexylthiophene)-Based Block Copolymers" Macromolecules 2017 50 (5), pp 1902-1908

[21] Youngkwon Kim, Hyeong Jun Kim, Jin-Seong Kim Ryan C. Hayward* and Bumjoon J. Kim* "Architectural Effects on Solution Self-Assembly of Poly(3-hexylthiophene)-Based Graft Copolymers" ACS Applied Materials & Interfaces 2017, 9 (3), 2933-2941 (Equal Contribution)


[20] Hyeong Jun Kim, Matthew Skinner, Hojeong Yu, Joon Hak Oh, Alejandro L. Briseno, Todd Emrick, Bumjoon J. Kim*, and Ryan C. Hayward* "Water Processable Polythiophene Nanowires by Photo-Cross-Linking and Click-Functionalization" Nano Letters 2015, 15 (9), 5689-5695

[19] Wonho Lee, Jin-Seong Kim, Hyeong Jun Kim, Jae Man Shin, Kang Hee Ku, Hyunseung Yang, Junhyuk Lee, Jung Gun Bae, Won Bo Lee*, and Bumjoon J. Kim* "Graft Architectured Rod-Coil Copolymers Based on Alternating Conjugated Backbone: Morphological and Optical Properties" Macromolecules 2015, 48 (16), 5563-5569

[18] Jin-Seong Kim, Jae-Han Kim, Wonho Lee, Hojeong Yu, Hyeong Jun Kim, Inho Song, Minkwan Shin, Joon Hak Oh, Unyong Jeong, Taek-Soo Kim*, and Bumjoon J. Kim* "Tuning Mechanical and Opto-Electrical Properties of Poly(3-hexylthiophene) Through Systematic Regioregularity Control" Macromolecules 2015, 48 (13), 4339-4346

[17] Minsoo Kim, Hyeong Jun Kim, Bumjoon J. Kim*, and Gi-Ra Yi* "Structured Nanoporous Surfaces from Hybrid Block Copolymer Micelle Films with Metal Ions" Nanotechnology 2015, 26, 095302

[16] Dong Jin Kang, Han-Hee Cho,Inhwa Lee, Ki-Hyun Kim, Hyeong Jun Kim, Kin Liao, Taek-Soo Kim, and Bumjoon J. Kim* "Enhancing Mechanical Properties of Highly Efficient Polymer Solar Cells Using Size-Tuned Polymer Nanoparticles" ACS Applied Materials & Interfaces 2015, 7, 2668-2676

[15] Moo Yeol Lee, Hyeong Jun Kim, Gwan Yeong Jung, A-Reum Han, Sang Kyu Kwak, Bumjoon J. Kim*, and Joon Hak Oh* "Highly Sensitive and Selective Liquid-Phase Sensors Based on a Solvent-Resistant Organic Transistor Platform" Advanced Materials 2015, 27, 1540-1546


[14] Hyeong Jun Kim, Jae-Han Kim, Ji-Ho Ryu, Youngkwon Kim, Hyunbum Kang, Won Bo Lee, Taek-Soo Kim*, and Bumjoon J. Kim* "Architectural Engineering of Rod-Coil Compatibilizers for Producing Mechanically and Thermally Stable Polymer Solar Cells" ACS Nano 2014, 8 (10), 10461-10470

[13] Ming Liang Jin, Jong Kil Choi, Dae Woo Kim, Jong-Min Park, Cheng Jin An, Hyeong Jun Kim, Bumjoon J. Kim, Ying Diao and Hee-Tae Jung* "Enhanced Thermal Stability of Organic Solar Cells on Nano Structured Electrode by Simple Acid Etching" Organic Electronics 2014, 15 (3), 680-684

[12] Youngwoon Yoon, Hyeong Jun Kim, Chul-Hee Cho, Seulki Kim, Hae Jung Son, Min-Jae Ko, Honggon Kim, Doh-Kwon Lee, Jin Young Kim, Wonmok Lee, Bumjoon J. Kim, and BongSoo Kim* "Carrier Lifetime Extension via the Incorporation of Robust Hole/Electron Blocking Layers in Bulk Heterojunction Polymer Solar Cells"

ACS Applied Materials & Interfaces 2014, 6 (1), 333-339


[11] Hyeong Jun Kim, Kwanyeol Paek, Hyunseung Yang, Chul-Hee Cho, Jin-Seong Kim, Wonbo Lee, and Bumjoon J. Kim* "Molecular Design of Graft Assembly for Ordered Microphase Separation of P3HT-based Rod-Coil Copolymers" Macromolecules 2013, 46 (21), 8472–8478

[10] Minsoo P. Kim, Kang Hee Ku, Hyeong Jun Kim, Se Gyu Jang, Gi-Ra Yi*, and Bumjoon J. Kim* "Surface Intaglio Nanostructures on Microspheres of Gold-Cored Block Copolymer Micelles" Chemistry of Materials 2013, 25 (21), 4416-4422

[9] Tae Eui Kang, Han-Hee Cho, Hyeong Jun Kim, Wonho Lee, Hyunbum Kang, and Bumjoon J. Kim* "Importance of Optimal Composition in Random Terpolymer Based Polymer Solar Cells" Macromolecules 2013, 46 (17), 6806–6813

[8] Jae Won Jeong, Yoon Hyung Hur, Hyeong Jun Kim, Woon Ik Park, Jong Min Kim, Bumjoon Kim, Mi Jeong Kim and Yeon Sik Jung* "Proximity Injection of Plasticizing Molecules to Self-Assembling Polymers for Large-area, Fast Nanopatterning in the Sub-10 nm Regime" ACS Nano 2013, 7 (8), 6747–6757

[7] Su Yeon Lee, Shin-Hyun Kim, Minsoo P. Kim, Hwan Chul Jeon, Hyelim Kang, Hyeong Jun Kim, Bumjoon J. Kim, and Seung-Man Yang*  "Freestanding and Arrayed Nanoporous Microcylinders for Highly Active 3D SERS Substrate" Chemistry of Materials 2013, 25 (12), 2421-2426


[6] Jerome K. Hyun, Changui Ahn, Hyunbum Kang, Hyeong Jun Kim, Junyong Park, Ki-Hyun Kim, Chi Won Ahn, and Bumjoon J. Kim, and Seokwoo Jeon* "Soft Elastomeric Nanopillar Stamps for Enhancing Absorption in Organic Thin-Film Solar Cells" Small 2012, 9 (3), 369-374

[5] Han-Hee Cho, Tae Eui Kang, Ki-Hyun Kim, Hyunbum Kang, Hyeong Jun Kim, and Bumjoon J. Kim* "Effect of Incorporated Nitrogens on the Planarity and Photovoltaic Performance of Donor-Acceptor Copolymers" Macromolecules 2012, 45 (16), 6415-6423

[4] Chul-Hee Cho, Hyeong Jun Kim, Hyunbum Kang, Tae Joo Shin and Bumjoon J. Kim* "Effect of Side-Chain Length on Regioregular Poly[3-(4-n-alkyl)phenylthiophene]/PCBM and ICBA Polymer Solar Cells" Journal of Materials Chemistry 2012, 22, 14236-14245 (Equal contribution).  

[3] Ki-Hyun Kim, Hyunbum Kang, Hyeong Jun Kim, Pan Seok Kim, Sung Cheol Yoon*, and Bumjoon J. Kim* "Effects of Solubilizing Group Modification in Fullerene Bis-Adducts on Normal and Inverted Type Polymer Solar Cells" Chemistry of Materials 2012, 24 (12), 2373-2381

[2] Hyeong Jun Kim, A-Reum Han, Chul-Hee Cho, Hyunbum Kang, Han-Hee Cho, Moo Yeol Lee, Jean M.J. Frechet, Joon Hak Oh* and Bumjoon J. Kim* "Solvent-Resistant Organic Transistors and Thermally-Stable Organic Photovoltaics Based on Crosslinkable Conjugated Polymers" Chemistry of Materials 2012, 24 (1), 215-221

[1] Hyunbum Kang , Chul-Hee Cho , Tae Eui Kang , Hyeong Jun Kim , Ki-Hyun Kim , Han-Hee Cho , Sung Cheol Yoon , and Bumjoon J. Kim* "Controlling Number of Indene Solubilizing Groups in Multiadduct Fullerenes for Tuning Opto-Electronic Properties and Open-Circuit Voltage in Organic Solar Cells" ACS Applied Materials & Interfaces 2012, 4 (1), 110-116