A Wide Bandgap Polymer with Strong π–π Interaction for Efficient Fullerene‐Free Polymer Solar Cells. Issue 15 (3rd June 2016)

• Record Type: Journal Article
• Authors: Yao, Huifeng; Yu, Runnan; Shin, Tae Joo; Zhang, Hao; Zhang, Shaoqing; Jang, Bomee; Uddin, Mohammad Afsar; Woo, Han Young; Hou, Jianhui
• Is Part Of: Advanced energy materials. Volume 6:Issue 15(2016)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2016-06-03
• Subjects: active layer thickness -- complementary absorption -- polymer solar cells -- strong π–π interaction -- wide bandgap polymers; Energy harvesting -- Materials -- Periodicals; Energy conversion -- Materials -- Periodicals; Energy storage -- Materials -- Periodicals; Photovoltaics -- Periodicals; Fuel cells -- Periodicals; Thermoelectric materials -- Periodicals; 621.31
• DOI: 10.1002/aenm.201600742
• Languages: English
• ISSNs: 1614-6832

Abstract

Abstract : A wide bandgap polymer donor PBDTS‐DTBTO is designed and synthesized, which shows an optical bandgap of 1.76 eV and strong π–π interaction. By using a low‐bandgap acceptor ITIC, power conversion efficiency over 9% is achieved in the fullerene‐free polymer solar cells (PSC) device. Furthermore, the PSC devices fabricated by PBDTS‐DTBTO:ITIC show relatively small sensitivity to variations of the active layer thickness.