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

Recent Achievements

제목

[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). 

 

 

 

 

0

추천하기

0

반대하기

첨부파일 다운로드

등록자관리자

등록일2017-10-23

조회수3,387

  • 페이스북 공유
  • 트위터 공유
  • Google+ 공유
  • 인쇄하기
 
스팸방지코드 :
사진제목
Title: Self-Organization of Polymer Additive, Poly(2-vinylpyridine) via One-Step Solution Processing to Enhance the Efficiency and Stability of Polymer Solar Cells Author: Wonho Lee, Seonju Jeong, Changyeon Lee, Gibok Han, Changsoon Cho, Jung-Yong Lee, Bumjoon J. Kim*    Journal: Advanced Energy Materials, 2017, Vol.7, 1602812 Abstract: &...
Title: A hydrocarbon/Nafion bilayer membrane with a mechanical nano-fastener for vanadium redox flow batteries   Author: Soohyun Kim, Seongmin Yuk, Hyungyu Kim, Chanyong Choi, Riyul Kim, Jang Young Lee, Young Taik Hong and Hee-Tak Kim* Journal: Journal of Materials Chemistry A, 2017, 5, 17279-17286 Inside front cover Abstra...
Title: Stimuli-Responsive, Shape-Transforming Nanostructured Particles Author: Junhyuk Lee, Kang Hee Ku, Mingoo Kim, Jae Man Shin, Junghun Han, Chan Ho Park, Gi-Ra Yi, Se Gyu Jang, Bumjoon J. Kim*   Journal: Advanced Materials, 2017, Vol.29, 1700608 Abstract Dynamic, temperature-driven transformation of the shap...
Title:  [Frontispiece] Structural Color Palettes of Core-Shell Photonic InkCapsules containing Cholesteric Liquid CrystalsAuthor: Sang Seok Lee, HyeonJin Seo, Yun Ho Kim,* and Shin-Hyun Kim*Journal: AdvancedMaterials, 2017, Vol.29, 1606894AbstractPhotonicmicrocapsules with onion-like topology are microfluidically designed to have cholesteric liquid crystals with oppositehandedness in th...
Title:  [Front cover] Selective Coloration of Melanin Nanospheres throughResonant Mie ScatteringAuthor: Soojeong Cho, Tae SoupShim, Ju Hyeon Kim, Dong-Hyun Kim, and Shin-Hyun Kim*Journal: Advanced Materials,2017, Vol.29, 1700256AbstractBlack melanin inks are preparedto selectively exhibit colors under strong light, inspired by human hair. Highabsorbance of melanin suppresses multiple sca...