Synthesis of mutually-penetrating phase-separated polymers and their application to organic solar cells with 3D nanostructures

Tomoya Higashihara

Associate Professor, Graduate School of Science and Engineering, Yamagata University

Abstract

Organic solar cells have been suffered from serious problems of low power conversion efficiency and even depletion after ageing, mainly caused by the aggregation of p/n organic semiconductors in a bulk-heterojunction system. In this project, novel pi-conjugated block copolymers would be synthesized, which show compatibility to each molecule of p/n semiconductors as well as high charge mobility. By using those block copolymers as surfactants to suppress the aggregation, better and more stable solar cell performance is highly expected.