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Wansun Kim
Researcher at KAIST
Publications - 14
Citations - 713
Wansun Kim is an academic researcher from KAIST. The author has contributed to research in topics: Polymer solar cell & Perovskite solar cell. The author has an hindex of 8, co-authored 14 publications receiving 398 citations.
Papers
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Journal ArticleDOI
Mechanically Robust All-Polymer Solar Cells from Narrow Band Gap Acceptors with Hetero-Bridging Atoms
Qunping Fan,Wenyan Su,Wenyan Su,Shanshan Chen,Shanshan Chen,Wansun Kim,Xiaobin Chen,Byongkyu Lee,Tao Liu,Ulises A. Méndez-Romero,Ruijie Ma,Tao Yang,Wenliu Zhuang,Yu Li,Yaowen Li,Taek-Soo Kim,Lintao Hou,Changduk Yang,He Yan,Donghong Yu,Ergang Wang,Ergang Wang +21 more
TL;DR: In this paper, three narrow band-gap polymer acceptors with different bridging atoms (i.e., C, Si, and Ge) were developed for all-polymer solar cells (all-PSCs).
Journal ArticleDOI
Record-efficiency flexible perovskite solar cell and module enabled by a porous-planar structure as an electron transport layer
Jaehoon Chung,Seong Sik Shin,Kyeongil Hwang,Geunjin Kim,Ki Woong Kim,Da Seul Lee,Wansun Kim,Boo Soo Ma,Young-Ki Kim,Taek-Soo Kim,Jangwon Seo +10 more
TL;DR: In this paper, a low temperature processed porous planar electron transport layer (ETL) inspired by a mesoporous structure for improving the performance of flexible devices was proposed, which achieved a power conversion efficiency (PCE) of 20.7% with certified efficiency of 19.9% on a flexible substrate.
Journal ArticleDOI
Importance of Critical Molecular Weight of Semicrystalline n-Type Polymers for Mechanically Robust, Efficient Electroactive Thin Films
Joonhyeong Choi,Wansun Kim,Donguk Kim,Seonha Kim,Junsu Chae,Siyoung Q. Choi,Felix Sunjoo Kim,Taek-Soo Kim,Bumjoon J. Kim +8 more
TL;DR: In this paper, the guidelines for the material design having both high mechanized properties of conducting polymers are defined for the design of flexible and stretchable electronics, but the guidelines do not consider the properties of conductivity.
Journal ArticleDOI
Comparative Study of the Mechanical Properties of All-Polymer and Fullerene–Polymer Solar Cells: The Importance of Polymer Acceptors for High Fracture Resistance
Wansun Kim,Joonhyeong Choi,Jae-Han Kim,Taesu Kim,Changyeon Lee,Seungjin Lee,Mingoo Kim,Bumjoon J. Kim,Taek-Soo Kim +8 more
TL;DR: In this article, the fracture energy and elastic modulus of all-polymer solar cells (all-PSCs) and fullerene-based solar cells based on the same, representative lowbandgap polymer donor (PTB7-Th) as a function of acceptor content were compared.
Journal ArticleDOI
Influence of Acceptor Type and Polymer Molecular Weight on the Mechanical Properties of Polymer Solar Cells
TL;DR: In this paper, small-molecule acceptors and polymer acceptors have been extensively explored, which has yielded significant enhancements in the photovoltaic peewee pe...