Search Results - "Choi, Joonhyeong"

Influence of Acceptor Type and Polymer Molecular Weight on the Mechanical Properties of Polymer Solar Cells by Choi, Joonhyeong, Kim, Wansun, Kim, Seonha, Kim, Taek-Soo, Kim, Bumjoon J

“…Nonfullerene acceptors (NFAs), that are small-molecule acceptors (SMA) and polymer acceptors (PAs), have been extensively explored, which has yielded…”
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Comparative Study of Thermal Stability, Morphology, and Performance of All-Polymer, Fullerene–Polymer, and Ternary Blend Solar Cells Based on the Same Polymer Donor by Kim, Taesu, Choi, Joonhyeong, Kim, Hyeong Jun, Lee, Wonho, Kim, Bumjoon J

“…We compared the thermal and morphological stability of all-polymer solar cells (all-PSCs) and fullerene-based PSCs (fullerene-PSCs) having the same polymer…”
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Importance of Critical Molecular Weight of Semicrystalline n‑Type Polymers for Mechanically Robust, Efficient Electroactive Thin Films by Choi, Joonhyeong, Kim, Wansun, Kim, Donguk, Kim, Seonha, Chae, Junsu, Choi, Siyoung Q, Kim, Felix Sunjoo, Kim, Taek-Soo, Kim, Bumjoon J

“…Mechanical properties of conducting polymers are an essential consideration in the design of flexible and stretchable electronics, but the guidelines for the…”
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Origin of the High Donor–Acceptor Composition Tolerance in Device Performance and Mechanical Robustness of All-Polymer Solar Cells by Lee, Jin-Woo, Ma, Boo Soo, Choi, Joonhyeong, Lee, Junbok, Lee, Seungjin, Liao, Kin, Lee, Wonho, Kim, Taek-Soo, Kim, Bumjoon J

“…High tolerance regarding photovoltaic performance in terms of donor:acceptor (D:A) composition ratio is reported for all-polymer solar cells (all-PSCs), which…”
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Importance of Electron Transport Ability in Naphthalene Diimide-Based Polymer Acceptors for High-Performance, Additive-Free, All-Polymer Solar Cells by Choi, Joonhyeong, Kim, Ki-Hyun, Yu, Hojeong, Lee, Changyeon, Kang, Hyunbum, Song, Inho, Kim, Youngwoong, Oh, Joon Hak, Kim, Bumjoon J

“…We report a systematic investigation of the correlations between the electron mobility of polymer acceptors and the photovoltaic performances of all-polymer…”
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Comparative Study of the Mechanical Properties of All-Polymer and Fullerene–Polymer Solar Cells: The Importance of Polymer Acceptors for High Fracture Resistance by Kim, Wansun, Choi, Joonhyeong, Kim, Jae-Han, Kim, Taesu, Lee, Changyeon, Lee, Seungjin, Kim, Mingoo, Kim, Bumjoon J, Kim, Taek-Soo

“…High fracture resistance of polymer solar cells (PSCs) is of great importance to ensure long-term mechanical reliability, especially considering their…”
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Correlation between Phase-Separated Domain Sizes of Active Layer and Photovoltaic Performances in All-Polymer Solar Cells by Lee, Changyeon, Li, Yuxiang, Lee, Wonho, Lee, Youngmin, Choi, Joonhyeong, Kim, Taesu, Wang, Cheng, Gomez, Enrique D, Woo, Han Young, Kim, Bumjoon J

“…The control of the bulk-heterojunction (BHJ) morphology in polymer/polymer blends remains a critical hurdle for optimizing all-polymer solar cells (all-PSCs)…”
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Importance of 2D Conjugated Side Chains of Benzodithiophene-Based Polymers in Controlling Polymer Packing, Interfacial Ordering, and Composition Variations of All-Polymer Solar Cells by Lee, Changyeon, Giridhar, Thota, Choi, Joonhyeong, Kim, Seonha, Kim, Youngwoong, Kim, Taesu, Lee, Wonho, Cho, Han-Hee, Wang, Cheng, Ade, Harald, Kim, Bumjoon J

“…We delineate the important role of 2D conjugated alkylthiophene side chains of polymers in manipulating the molecular orientation and ordering at the polymer…”
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Efficient and Air‐Stable Aqueous‐Processed Organic Solar Cells and Transistors: Impact of Water Addition on Processability and Thin‐Film Morphologies of Electroactive Materials by Lee, Changyeon, Lee, Hae Rang, Choi, Joonhyeong, Kim, Youngkwon, Nguyen, Thanh Luan, Lee, Wonho, Gautam, Bhoj, Liu, Xiang, Zhang, Kai, Huang, Fei, Oh, Joon Hak, Woo, Han Young, Kim, Bumjoon J.

“…The authors report the development of a desirable aqueous process for ecofriendly fabrication of efficient and stable organic field‐effect transistors…”
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Controlling Energy Levels and Blend Morphology for All-Polymer Solar Cells via Fluorination of a Naphthalene Diimide-Based Copolymer Acceptor by Uddin, Mohammad Afsar, Kim, Youngkwon, Younts, Robert, Lee, Wonho, Gautam, Bhoj, Choi, Joonhyeong, Wang, Cheng, Gundogdu, Kenan, Kim, Bumjoon J, Woo, Han Young

“…We investigate the photovoltaic properties and charge dynamics of all polymer solar cells (all-PSCs) based on…”
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Donor–Acceptor Random versus Alternating Copolymers for Efficient Polymer Solar Cells: Importance of Optimal Composition in Random Copolymers by Kang, Tae Eui, Choi, Joonhyeong, Cho, Han-Hee, Yoon, Sung Cheol, Kim, Bumjoon J

“…The backbone composition of conjugated copolymers is of great importance in determining the conjugated structure and intermolecular assembly and in…”
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High-Performance All-Polymer Solar Cells Based on Face-On Stacked Polymer Blends with Low Interfacial Tension by Kang, Hyunbum, Kim, Ki-Hyun, Choi, Joonhyeong, Lee, Changyeon, Kim, Bumjoon J

“…We report highly efficient all-polymer solar cells with power conversion efficiencies of over 4.5% by highly intermixed blends of PTB7-Th donor and…”
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Aqueous Soluble Fullerene Acceptors for Efficient Eco-Friendly Polymer Solar Cells Processed from Benign Ethanol/Water Mixtures by Kim, Youngkwon, Choi, Joonhyeong, Lee, Changyeon, Kim, Youngwoong, Kim, Changkyun, Nguyen, Thanh Luan, Gautam, Bhoj, Gundogdu, Kenan, Woo, Han Young, Kim, Bumjoon J

“…We present a new series of fullerene derivatives that exhibit solubility in ethanol/water solvent mixtures and implement these materials to fabricate polymer…”
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Rationally Designed Donor–Acceptor Random Copolymers with Optimized Complementary Light Absorption for Highly Efficient All‐Polymer Solar Cells by Kim, Sang Woo, Choi, Joonhyeong, Bui, Thi Thu Trang, Lee, Changyeon, Cho, Changsoon, Na, Kwangmin, Jung, Jihye, Song, Chang Eun, Ma, Biwu, Lee, Jung‐Yong, Shin, Won Suk, Kim, Bumjoon J.

“…Most of the high‐performance all‐polymer solar cells (all‐PSCs) reported to date are based on polymer donor and polymer acceptor pairs with largely overlapped…”
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Organic Electronics: Efficient and Air‐Stable Aqueous‐Processed Organic Solar Cells and Transistors: Impact of Water Addition on Processability and Thin‐Film Morphologies of Electroactive Materials (Adv. Energy Mater. 34/2018) by Lee, Changyeon, Lee, Hae Rang, Choi, Joonhyeong, Kim, Youngkwon, Nguyen, Thanh Luan, Lee, Wonho, Gautam, Bhoj, Liu, Xiang, Zhang, Kai, Huang, Fei, Oh, Joon Hak, Woo, Han Young, Kim, Bumjoon J.

“…In article number 1802674, Han Young Woo, Bumjoon J. Kim and co‐workers report a water‐ethanol process for eco‐friendly fabrication of polymer electronic…”
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Solar Cells: Rationally Designed Donor–Acceptor Random Copolymers with Optimized Complementary Light Absorption for Highly Efficient All‐Polymer Solar Cells (Adv. Funct. Mater. 38/2017) by Kim, Sang Woo, Choi, Joonhyeong, Bui, Thi Thu Trang, Lee, Changyeon, Cho, Changsoon, Na, Kwangmin, Jung, Jihye, Song, Chang Eun, Ma, Biwu, Lee, Jung‐Yong, Shin, Won Suk, Kim, Bumjoon J.

“…In article number 1703070, Won Suk Shin, Bumjoon J. Kim, and co‐workers describe the importance of the design of polymer donor‐polymer acceptor pair to achieve…”
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Effect of the acceptor types on the fracture behavior of polymer solar cells by Kim, Wansun, Choi, Joonhyeong, Kim, Jae-Han, Kim, Taesu, Lee, Changyeon, Lee, Seungjin, Kim, Mingoo, Kim, Bumjoon J., Kim, Taek-Soo

“…Mechanical robustness of polymer solar cells should be ensured for the device reliability, but the brittle active layers of fullerene derivative based polymer…”
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