Department of Chemical and Biomolecular Engineering
Korea Advanced Institute of Science and Technology

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[Inside Back Cover] Rationally Designed Donor–Acceptor Random Copolymers with Optimized Complementary Light Absorption for Highly Efficient All-Polymer Solar Cells

Title: Rationally Designed DonorAcceptor Random Copolymers with Optimized Complementary Light Absorption for Highly Efcient All-Polymer Solar Cells

 

Author: Sang Woo Kim, Joonhyeong Choi, Thi Thu Trang Bui, Changyeon Lee, Changsoon Cho, Kwangmin Na, Jihye Jung, Chang Eun Song, Biwu Ma, Jung-Yong Lee, Won Suk Shin,* and Bumjoon J. Kim*

 

Journal: Adv. Funct. Mater. 2017, 27, 1703070


 

Abstract: 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 light absorption properties, which seriously limits the efciency of all-PSCs. This study reports the development of a series of random copolymer donors possessing complementary light absorption with the naphthalenediimide-based polymer acceptor P(NDI2HD-T2) for highly efcient all-PSCs. By controlling the molar ratio of the electron-rich benzodithiophene (BDTT) and electron-decient uorinated-thienothiophene (TT-F) units, a series of polymer donors with BDTT:TT-F ratios of 1:1 (P1), 3:1 (P2), 5:1 (P3), and 7:1 (P4) are prepared. The synthetic control of polymer composition allows for precise tuning of the light absorption properties of these new polymer donors, enabling optimization of light absorption properties to complement those of the P(NDI2HD-T2) acceptor. Copolymer P1 is found to be the optimal polymer donor for the fullerene-based solar cells due to its high light absorption, whereas the highest power conversion efciency of 6.81% is achieved for the all-PSCs with P3, which has the most complementary light absorption with P(NDI2HD-T2). 

 

 

 

 

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등록일2017-10-23

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Dr. Shin-Hyun Kim, Jae Won Shim, Prof. Seung-Man YangArticle first published online: 10 DEC 2010 DOI: 10.1002/anie.201007478 http://onlinelibrary.wiley.com/doi/10.1002/anie.201007478/abstract Abstract Transparent microspheres can be optically encoded with color core droplets, as shown by S.-H. Kim, J. W. Shim, and S.-M. Yang in their Communication on page 1171 ff. A microfluidic ...
Ki Soo Park1, Moon Il Kim1, Dae-Yeon Cho2, Hyun Gyu Park1,* Highlighted as a front cover paper of Small  2011, 7(11), 1521-1525. Article first published online: 31 MAY 2011 DOI: 10.1002/smll.201190038  http://onlinelibrary.wiley.com/doi/10.1002/smll.201190038/abstract   Abstract The cover image illustrates how target polymerase chain reaction (PCR) products shield the...
Seungwoo Lee, Jonghwa Shin, Hong Suk Kang, Yong-Hee Lee, Jung-Ki Park* Highlighted as a “Frontispiece” of Advanced Materials, 23(29), 3244-3250 (2011) Article first published online: 3 JUN 2011 DOI: 10.1002/adma.201100662  http://onlinelibrary.wiley.com/doi/10.1002/adma.201100662/abstract Abstract Directional photofluidization lithography enables deterministic large-area na...
Seungwoo Lee, Hong Suk Kang, Jung-Ki Park*Highlighted as a “Frontispiece” of Advanced Functional Materials, 21(10), 1770-1778 (2011) Article first published online: 15 MAR 2011 DOI: 10.1002/adfm.201001927 http://onlinelibrary.wiley.com/doi/10.1002/adfm.201001927/abstract Abstract A major challenge in nanolithography is to overcome the resolution limit of conventional patterni...
Shin-Hyun Kim, Hyerim Hwang, Che Ho Lim, Jae Won Shim, Seung-Man Yang Article first published online: 1 MAR 2011 DOI: 10.1002/adfm.201002316 http://onlinelibrary.wiley.com/doi/10.1002/adfm.201002316/abstract Abstract Advances in microfluidic emulsification have enabled the creation of multiphase emulsion drops, which have emerged as promising templates for producing functional micro...