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 :
Design and use of synthetic regulatory small RNAs to control gene expression in Escherichia coli Seung Min Yoo,1, 2 Dokyun Na1, 2, 3 & Sang Yup Lee1 Journal name:Nature Protocols Volume:8, Pages: 1694–1707 Year published:(2013)DOI: doi:10.1038/nprot.2013.105 Published online 08 August 2013 Abstract Gene knockout experiments are often essential in functional genomics and metabolic...
Abstract: Pristine graphene quantum dots and graphene oxide quantum dots are synthesized by chemical exfoliation from graphite nanoparticles with high uniformity in terms of shape (circle), size (less than 4 nm), and thickness (monolayer). The origin of the blue and green photoluminescence of GQDs and GOQDs is attributed to intrinsic and extrinsic energy states, respectively. Further d...
ABSTRACT: Fumaric acid is a naturally occurring organic acid that is an intermediate of the tricarboxylic acid cycle. Fungal species belonging to Rhizopus have traditionally been employed for the production of fumaric acid. In this study, Escherichia coli was metabolically engineered for the production of fumaric acid under aerobic condition. For the aerobic production of fumaric acid, t...
Multicolor patterning using holographic woodpile photonic crystals at visible wavelengths Sung-Gyu Park*a and   Seung-Man Yang*a   Nanoscale, 2013,5, 4110-4113 DOI: 10.1039/C3NR00644A Received 05 Feb 2013, Accepted 15 Mar 2013First published online 19 Mar 2013 Abstract High-quality woodpile structures with photonic band gaps in the visible wavelength ...
   Metabolic engineering of Escherichia coli using synthetic small regulatory RNAs Dokyun Na,1, 2 Seung Min Yoo,1, 2 Hannah Chung,1 Hyegwon Park,1 Jin Hwan Park1, 2 & Sang Yup Lee Nature BiotechnologyYear published:(2013)DOI:doi:10.1038/nbt.2461Received17 January 2012 Accepted22 November 2012 Published online20 January 2013 Small regulatory RNAs (...