NDLI: High-performance fullerene-free polymer solar cells with 6.31% efficiency

Content Provider	Royal Society of Chemistry (RSC)
Author	Lin, Yuze Li, Yongfang Bai, Huitao Zhu, Daoben Wang, Jiayu Yao, Yuehan Zhan, Xiaowei Zhang, Zhi-Guo
Copyright Year	2015
Abstract	A nonfullerene electron acceptor (IEIC) based on indaceno[1,2-b:5,6-b′]dithiophene and 2-(3-oxo-2,3-dihydroinden-1-ylidene)malononitrile was designed and synthesized. IEIC exhibited good thermal stability, strong absorption in the 500–750 nm region with an extinction coefficient of 1.1 × 105 M−1 cm−1 at 672 nm, deep LUMO energy level (−3.82 eV) close to those of fullerenes, and a relatively high electron mobility of 2.1 × 10−4 cm2 V−1 s−1. Fullerene-free polymer solar cells (PSCs) based on the blends of the IEIC acceptor and a low-bandgap polymer donor PTB7-TH, using a perylene diimide derivative as a cathode interlayer, showed power conversion efficiencies (PCEs) of up to 6.31%, which is among the best PCEs reported for fullerene-free PSCs.
Starting Page	610
Ending Page	616
Page Count	7
File Format	HTM / HTML PDF
ISSN	17545692
Volume Number	8
Issue Number	2
Journal	Energy & Environmental Science
DOI	10.1039/c4ee03424d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	IEIC Electron acceptor Malononitrile Molar attenuation coefficient Electronvolt Electron mobility Polymer Perylene Diazene Cathode
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering

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High-performance fullerene-free polymer solar cells with 6.31% efficiency