Molecular Weight Effect on the Absorption, Charge Carrier Mobility, and Photovoltaic Performance of an Indacenodiselenophene-Based Ladder-Type Polymer

• Published in: Chemistry of materials Vol. 25; no. 15; pp. 3188 - 3195
• Main Authors: Intemann, Jeremy J, Yao, Kai, Yip, Hin-Lap, Xu, Yun-Xiang, Li, Yong-Xi, Liang, Po-Wei, Ding, Fei-Zhi, Li, Xiaosong, Jen, Alex K.-Y
• Format: Journal Article
• Language: English
• Published: American Chemical Society 13.08.2013
• Subjects: selenium; ladder-type polymers; organic field-effect transistors; conjugated polymers; organic photovoltaics; density functional theory

Selenium substitution on a ladder-type indacenodithiophene-based polymer (PIDT-DFBT) is investigated in order to reduce band gap, improve charge mobilities, and enhance the photovoltaic performance of the material. The new indacenodiselenophene-based polymer (PIDSe-DFBT) possessed improved absorptio...