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

Recent Achievements


[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). 









첨부파일 다운로드




  • 페이스북 공유
  • 트위터 공유
  • Google+ 공유
  • 인쇄하기
스팸방지코드 :
A Highly Sensitive Molecular Detection Platform for Robust and Facile Diagnosis of Middle East Respiratory Syndrome (MERS) Corona VirusAuthor : Il Young Jung, Jae Bem You, Bo Ram Choi, Ji Su Kim, Hyun Kyung Lee, Bora Jang, Han Saem Jeong, Kyuri Lee, Sung Gap Im*, Hyukjin Lee*Journal : Advanced Healthcare Materials 2016, 5, 2168-2173[ABSTRACT]In this work, we demonstrate a definitive ...
Size-controlled gold nano-tetradecapodswith tunable optical and electromagnetic propertiesAuthor : Kyeong Woo Choi, Shin Wook Kang, Do Youb Kim*, Sang Hyuk Im, Yangsun Park, Sang Woo Han* and O Ok Park*Journal : Journal of Materials Chemistry CPage : Vol. 4, No. 15, page 3063-3350(April, 2016)[ABSTRACT]The synthesis of novel branched Aunanocrystals with a well-defined and size-controllable dualist...
Title: Metal ion triggers for reversible switching of DNA polymeraseAuthors: Ki Soo Park, Chang Yeol Lee, and Hyun Gyu Park Journal: Chemical CommunicationsPage: Vol. 52, page 4868-4871 (April, 2016) [Abstract] We herein develop a new strategy that modulates DNA polymerase activity in a reversible and switchable manner by using the novel interactions between DNA bases and metal...
Tuning selectivity of electrochemical reactions by atoomically dispersed platinum catalyst Chang Hyuck Choi, Minho Kim, Han Chang Kwon, Sung June Cho, Seongho Yun, Hee-Tak Kim, Karl J.J. Mayrhofer, Hyungjun Kim, Minkee Choi Nature Communications, Vol. 7, page 10922 (March 8, 2016) [Abstract] Maximum atom efficiency as well as distinct chemoselectivity is expected for electrocat...
Sustainable Redox Mediation for Lithium–Oxygen Batteries by a Composite Protective Layer on the Lithium-Metal Anode   Dong Jin Lee†, Hongkyung Lee†, Yun-Jung Kim , Jung-Ki Park ,* and Hee-Tak Kim* († denotes equal contribution)   Advanced Materials, Vol. 28, Issue 5, page 857-863 (February 3, 2016) [Abstract]A synergic combination of a soluble &sh...