Browse

The π-extended isoindigo-based low bandgap polymer for high-performance polymer solar cells

Cited 0 time in Web of Science Cited 0 time in Scopus
Authors
정의혁조원호
Issue Date
2013-04
Publisher
한국고분자학회
Citation
2013 춘계학술대회 연구논문 Vol.38, No.1, p. 143
Keywords
공학
Abstract
Recently, low bandgap conjugated polymers have attracted considerable attention for polymer solar cells (PSCs). The desirable design directions for the polymers are that those should have deep HOMO energy levels, broad absorption and balanced crystallinity. Isoindigo, (E)-1H,1H-[3,3]biindolylidene-2,2-dione, which is one of the indigoid natural organic dyes is a symmetrical molecule containing two indolin-2-one units. Those contribute towards strong electron-withdrawing characteristic and planar π-conjugated structure of the molecule. Furthermore, isoindigo-based organic materials have broad absorption spectra, high extinction coefficients, and very deep HOMO energy levels which are closely related to open circuit voltage for PSCs. In this work, we present highly π-extended isoindigo-based alternating conjugated copolymer with 6.5% PCE. To the best of our knowledge, its photovoltaic performance is the best value reported to date for PSCs using isoindigo-based polymers.
Language
English
URI
https://hdl.handle.net/10371/83145
Files in This Item:
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Materials Science and Engineering (재료공학부)Others_재료공학부
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse