Construction of a long range p/n heterojunction with a pair of nanometre-wide continuous D/A phases
Abstract
A p/n heterojunction is the basic setup for light-electric conversion. It has been widely accepted that the ideal configuration for organic photovoltaics is formed by the joint of a pair of long-range continuous but nanometre-wide phases consisting of electron-donating (D) and -accepting (A) components, respectively. Such a p/n heterojunction can provide not only a large D/A interface essential to efficient photoinduced charge separation, but also the transportation pathways for both electrons and holes. This review article summarizes the present approaches including D–A double cables,