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"The only apparent limit is your imagination."

POSITION AVAILABLE : A few openings for graduates (both Ph.D. & M.S. programs), and undergraduates. Positions are available for those who have their background in chemical engineering, materials science, or chemistry related fields.

Research

1. π-Conjugated Polymer Semiconductors for Electronics and Photovoltaics

Design and Synthesis of New Polymers

Development of New Synthetic Route

Structure-Property-Performance Relationships

Polymer/Polymer Blend Nano-Morphology Study

2. Organic Electronic Device Engineering

Device Physics and Fabrication

Device Engineering

Organic Photovoltaics, OLEDs, Transistors

3. Flow Chemistry in Automated Microreactor

Organic Synthesis in Continuous Flow Reactor

Developing Automated Flow System for Large Quantity Polymer Synthesis

Research
People
Professor

Professor

Associate Professor

Department of Chemical Engineering, Inha University

E-mail : yjhwang@inha.ac.kr

Education

Ph. D. Chemical Engineering (2015)

  University of Washington, Seattle, USA

  Adviser : Samson A. Jenekhe

M. S. Chemical Engineering (2012)

  University of Washington, Seattle, USA

  Adviser : Samson A. Jenekhe

B. S. Chemical Engineering (2008)

  Inha University, Incheon, Republic of Korea

  Adviser : Sang-Eun Shim

Professional Career

Associate Professor (2023.03 - Current)

  Department of Chemical Engineering, Inha University

Assistant Professor (2017.03 - 2023.02) 

  Department of Chemical Engineering, Inha University

Post Doc. Chemical Engineering (2015.08 - 2017.01)

  Massachusetts Institute of Technology

Current Members

Graduate Students

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Nayeon Kim

B. S. in Chemical Engineering, Inha University (2020)

E-mail : ckgml667@inha.edu

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Taehoon Kang

B. S. in Chemical Engineering, Inha University (2023)

E-mail : kenny2626@naver.com

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Wonho Cho

B. S. in Chemical Engineering, Inha University (2023)

E-mail : taehee4466@inha.edu

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Gyeongseo Kim

B. S. in Chemical Engineering, Inha University (2024)

E-mail : devil3524@inha.edu

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Chae yeon Park

B. S. in Chemical Engineering, Inha University (2024)

E-mail : 22242223@inha.edu

Alumni

Eunbyuel Lee

M. S. in Chemistry and Chemical Engineering, Inha University (2019)

B. S. in Chemistry, Inha University (2016)

E-mail : dlquf7005@gmail.com

Current Position : Samsung Display (Engineer)

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Woojin Shin

M. S. in Chemistry and Chemical Engineering, Inha University (2020)

B. S. in Chemical Engineering, Inha University (2018)

E-mail : swj7563@naver.com

Current Position : Inventage Lab (Assistant Researcher)

Eunhee Lee

M. S. in Chemistry and Chemical Engineering, Inha University (2020)

B. S. in Chemistry, Inha University (2018)

E-mail : 22181403 @inha.edu

Current Position : LG Chem. (Engineer)

Wonyoung Ko

M. S. in Chemistry and Chemical Engineering, Inha University (2021)

B. S. in Chemical Engineering, Inha University (2019)

E-mail : 22191232 @inha.edu

Current Position : KT&G (Research Scientist)

Minkyoung Kim

M. S. in Chemistry and Chemical Engineering, Inha University (2021)

B. S. in Chemical Engineering, Inha University (2019)

E-mail : 22191150 @inha.edu     

Current Position : Samsung Electronics

Jihun Park

M. S. in Chemistry and Chemical Engineering, Inha University (2021)

B. S. in Chemical Engineering, Inha University (2019)

E-mail : 22191137 @inha.edu  

Current position : ISU Chemical

Gyungtak Kim

M. S. in Chemistry and Chemical Engineering, Inha University (2022)

B. S. in Chemical Engineering, Inha University (2020)

E-mail : 22201531 @inha.edu

Current position : Samsung Electronics

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Seunghwan Jin

M. S. in Chemistry and Chemical Engineering, Inha University (2022)

B. S. in Chemical Engineering, Inha University (2020)

E-mail : 22201564 @inha.edu

Current position : SK innovation

Youngrok Kim

M. S. in Chemistry and Chemical Engineering, Inha University (2023)

B. S. in Polymer Science and Engineering, Inha University (2020)

E-mail : yrkim@inha.edu

Current position : Miwon Commercial Co., Ltd.

Chanseo Lee

M. S. in Chemistry and Chemical Engineering, Inha University (2024)

B. S. in Chemical Engineering, Inha University (2022)

E-mail : lcs21025@inha.edu

Seungjun Lee

M. S. in Chemistry and Chemical Engineering, Inha University (2024)

B. S. in Chemical Engineering, Inha University (2022)

E-mail : dltmdwns1997@inha.edu

Current position : Ph. D. Student Chemical Engineering, The University of Texas at Austin

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Jinwoo Jeon

M. S. in Chemistry and Chemical Engineering, Inha University (2024)

B. S. in Chemical Engineering, Inha University (2022)

E-mail : jwoo421@inha.edu

Current position : Miwon Commercial Co., Ltd.

Current Members
Alumni

Publications

Seungjun Lee, Taeheon Kwak, Nayeon Kim, Felix Sunjoo Kim, Ye-Jin Hwang, Controlled two-step synthesis of n-type conjugated ladder polymers using a flow reactor, European Polymer Journal, Volume 220, 2024, 113445

Youngrok Kim, Chanseo Lee, Dongyeol Seo, Donguk Kim, Felix S Kim, Gregory I Peterson, Ye-Jin Hwang, Advancing organic electronics: Achieving reliable synthesis of conjugated polymers with various carrier polarities using a continuous flow reactor, Chemical Engineering Journal, 2024, 480, 148016

Seungjun Lee, Gyung-Tak Kim, Jueun Kim, Taehoon Kang, Taeshik Earmme, Ye-Jin Hwang, Precision control of molecular weight ratios in fully conjugated block copolymers using flow synthesis, Polymer Chemistry, 2024, 15, 1166-1172

Seung-Hwan Jin, Chanseo Lee, Youngrok Kim, Jinwoo Jeon, Gregory I Peterson, Ye-Jin Hwang, The influence of chain scission on the molecular weight of conjugated polymers in a continuous flow reactor, Polymer Degradation and Stability, 2023, 215, 110442

Hahyeon Kim, Jonghyun Lee, Seung Jae Lee, Jeong Eun Oh, Soo Dong Kim, Yashwardhan R Malpani, Ye-Jin Hwang, Boyoung Y Park, Improving the sustainability and safety of ursodeoxycholic acid synthesis in continuous flow process with water, Journal of Industrial and Engineering Chemistry, 2023, 119, 327–334

Jin Woo Jeon, Ye-Jin Hwang, Flow synthesis of conjugated polymers: exploring the effects of solvent and catalyst on molecular weight, Polymer Chemistry, 2023, 14, 5200-5207

Jihun Park, Seungjae Lee, Gyungtak Kim, Yashwardhan R Malpani, Boyoung Y Park, Ye-Jin Hwang, Flow Synthesis of L-α-Glycerylphosphorylcholine: Studies on Synthetic Routes Applicable to a Flow Reactor and Optimization of Reaction Conditions, Pharmaceutics, 2022, 14(11), 2480

Seung-Hwan Jin, Wonyoung Ko, Seungjun Lee, Ye-Jin Hwang, Combining flow synthesis and heterogeneous catalysis for the preparation of conjugated polymers, Polymer Chemistry, 2022, 13, 3171–3178.​

Min-Kyoung Kim, Gyung-Tak Kim, Taemin Kim, Moon-Gyu Kim, Felix Sunjoo Kim, Taeshik Earmme, Ye-Jin Hwang, New naphthalene diimide-based n-type copolymers: The effects of conjugated side chains, European Polymer Journal, 2021, 161, 110817 

Woojin Shin, Wonyoung Ko, Seung-Hwan Jin, Taeshik Earmme, Ye-Jin Hwang, Reproducible and rapid synthesis of a conjugated polymer by Stille polycondensation in flow: Effects of reaction parameters on molecular weight, Chemical Engineering Journal, 2021, 412, 128572

Eunhee Lee, Duyen K. Tran, Jihun Park, Wonyoung Ko, Samson A. Jenekhe, Ye-Jin Hwang, Benzodithiophene-based wide-bandgap small-molecule donors for organic photovoltaics with large open-circuit voltages, Organic Electronics, 2021, 88, 105996

Gregory I Peterson, Wonyoung Ko, Ye-Jin Hwang, Tae-Lim Choi,  Mechanochemical Degradation of Amorphous Polymers with Ball-Mill Grinding: Influence of the Glass Transition Temperature, Macromolecules, 2020, 53(18), 7795-7802

 

Duyen K Tran, Nagesh B Kolhe, Ye-jin Hwang, Daiki Kuzuhara, Tomoyuki Koganezawa, Samson A Jenekhe, Effects of a Fluorinated Donor Polymer on the Morphology, Photophysics, and Performance of All-Polymer Solar Cells Based on Naphthalene Diimide–Arylene Copolymer Acceptors, ACS Applied Materials & Interfaces, 2020, 12(14), 16490-16502 

 

Jianhua Chen, Chengcheng Tang, Shigan Guo, Zilong Wang, Zhaoxia He, Ye-Jin Hwang, Weibo Yan, Hao Xin, Wei Huang​, High crystalline small molecule manipulates polymer-fullerene morphology and enables 20% improvement in fill factor and device performance, Organic Electronics, 2020, 77, 105419

Lee E, Shin W, Bae O, Kim FS, Hwang Y-J,  Synthesis and Characterization of a highly crystalline benzotriazole-selenophene copolymer semiconductor, Polyemr, 2019 184, 121856

 

A segmented flow platform for on-demand medicinal chemistry and compound synthesis in oscillating droplets , CHEMICAL COMMUNICATIONS , 2017 , 53 (49), pp. 6649~6652

Organic nonvolatile memory devices utilizing intrinsic charge-trapping phenomena in an n-type polymer semiconductor , ORGANIC ELECTRONICS , 2016, 31 , pp. 104~110

Nonfullerene Polymer Solar Cells with 8.5% Efficiency Enabled by a New Highly Twisted Electron Acceptor Dimer , ADVANCED MATERIALS ,  2016, 28 (1), pp. 124~124

7.7% Efficient All-Polymer Solar Cells , ADVANCED MATERIALS , 2015, 27 (31), pp. 4578~4584

Ternary blend all-polymer solar cells: enhanced performance and evidence of parallel-like bulk heterojunction mechanism , MRS COMMUNICATIONS , 2015, 5 (2), pp. 229~234

Fine-Tuning the 3D Structure of Nonfullerene Electron Acceptors Toward High-Performance Polymer Solar Cells , ADVANCED MATERIALS , 2015, 27 (21), pp. 3266~3272

Polymer/Polymer Blend Solar Cells Using Tetraazabenzodifluoranthene Diimide Conjugated Polymers as Electron Acceptors , MACROMOLECULES , 2015, 48 (6), pp. 1759~1766

n-Type Semiconducting Naphthalene Diimide-Perylene Diimide Copolymers: Controlling Crystallinity, Blend Morphology, and Compatibility Toward High-Performance All-Polymer Solar Cells , JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2015, 137 (13), pp. 4424~4434

All-Polymer Bulk Heterojuction Solar Cells with 4.8% Efficiency Achieved by Solution Processing from a Co-Solvent , ADVANCED MATERIALS , 2014, 26 (35), pp. 6080~6080

Side chain engineering of n-type conjugated polymer enhances photocurrent and efficiency of all-polymer solar cells , CHEMICAL COMMUNICATIONS , 2014, 50 (74), pp. 10801~10804

Annealing temperature dependence of the efficiency and vertical phase segregation of polymer/polymer bulk heterojunction photovoltaic cells , APPLIED PHYSICS LETTERS , 2014, 104 (22)

All-Polymer Solar Cells with 3.3% Efficiency Based on Naphthalene Diimide-Selenophene Copolymer Acceptor , JOURNAL OF THE AMERICAN CHEMICAL SOCIETY , 2013, 135 (40), pp. 14960~14963

New n-type polymer semiconductors based on naphthalene diimide and selenophene derivatives for organic field-effect transistors , POLYMER CHEMISTRY , 2013, 4 (11), pp. 3187~3195

n-Type Naphthalene Diimide-Biselenophene Copolymer for All-Polymer Bulk Heterojunction Solar Cells , MACROMOLECULES , 2012, 45 (22), pp. 9056~9062

New Thienothiadiazole-Based Conjugated Copolymers for Electronics and Optoelectronics , MACROMOLECULES , 2012, 45 (9) , pp. 3732~3739

Publications

Academic Activities

Conferences

Awards

  • The Korean Institute of Chemical Engineering 2024

BEXCO Busan, Korea
2024. 10. 16. ~ 2024. 10. 18.

Wonho Cho, Gyeongseo Kim, Chaeyeon Park (Poster presentation)

  • KJF-ICOMEP 2024

ICC Jeju, korea​

2024. 04. 03. ~ 2024. 04. 05.

Ye-Jin Hwang (Invited lecture), Nayeon Kim, Taehoon Kang, Wonho Cho, Gyeongseo Kim (Poster presentation)

  • The Korean Institute of Chemical Engineering 2023

BEXCO Busan, Korea
2023. 04. 19. ~ 2023. 04. 21.

Seungjun Lee, Chanseo Lee, Jinwoo Jeon, Nayeon Kim, Taehoon Kang (Poster presentation)

  • 129th General Meeting of the Korean Chemical Society

ICC Jeju, Korea
2022. 04. 13. ~ 2022. 04. 15.

Youngrok Kim, Seungjun Lee, Chanseo Lee, Jinwoo Jeon (Poster presentation)

  • KJF-ICOMEP 2021

Online
2021. 08. 29. ~ 2021. 08. 31.
Ye-Jin Hwang (Invited lecture), Gyung Tak Kim, Seunghwan Jin, Youngrok Kim (Poster session)

  • IUPAC-MACRO 2020+

ICC Jeju, Korea
2021. 05. 16. ~ 2021. 05. 20.
Ye-Jin Hwang (Oral session), Seunghwan Jin, Gyung Tak Kim (Poster presentation)

  • Seungjun Lee

Best Poster Presentation Award 

@ KJF-ICOMEP 2022

  • Seungjun Lee

Best Poster Presentation Award 

@ ENGE 2022

  • Ye-Jin Hwang

Emerging Scholar Award

KJF-ICOMEP 2021

  • Seunghwan Jin

Best Poster Presentation Award
@ ​KJF-ICOMEP 2021

  • Youngrok Kim

Best Poster Presentation Award
@ ​KJF-ICOMEP 2021

  • Seunghwan Jin

RSC Polymer Chemistry Online Short Talk Award
@ IUPAC-MACRO 2020+

Activities?
Contact

Contact

Office

60-1116, Inha University

100 inharo, Michuhol-gu Incheon 22212, Republic of Korea

Laboratory

2-335, Inha University

100 inharo, Michuhol-gu Incheon 22212, Republic of Korea

E-mail

TEL

+82-32-860-7464

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