Science China Chemistry

, Volume 59, Issue 4, pp 422–435

Interface energetics and engineering of organic heterostructures in organic photovoltaic cells

  • Yan-Qing Li
  • Qian-Kun Wang
  • Qing-Dong Ou
  • Jian-Xin Tang
Reviews

DOI: 10.1007/s11426-015-5524-5

Cite this article as:
Li, YQ., Wang, QK., Ou, QD. et al. Sci. China Chem. (2016) 59: 422. doi:10.1007/s11426-015-5524-5

Abstract

The reliable information about interface energetics of organic materials, especially the energy level alignment at organic heterostructures is of pronounced importance for unraveling the photon harvesting and charge separation process in organic photovoltaic (OPV) cells. This article provides an overview of interface energetics at typical planar and mixed donor-acceptor heterostructures, perovskite/organic hybrid interfaces, and their contact interfaces with charge collection layers. The substrate effect on energy level offsets at organic heterostructures and the processes that control and limit the OPV operation are presented. Recent efforts on interface engineering with electrical doping are also discussed.

Keywords

organic photovoltaic cellorganic heterostructureenergy level alignmentsubstrate effectinterface engineering

Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Yan-Qing Li
    • 1
  • Qian-Kun Wang
    • 1
  • Qing-Dong Ou
    • 1
  • Jian-Xin Tang
    • 1
  1. 1.Institute of Functional Nano & Soft Materials, Collaborative Innovation Center of Suzhou Nano Science and Technology, Jiangsu Key Laboratory for Carbon-based Functional Materials & DevicesSoochow UniversitySuzhouChina