Electric field effects on organic photovoltaic heterojunction interfaces: The model case of pentacene/C60

Rui Rong Bai, Cai Rong Zhang, Zi Jiang Liu, Xian Kai Chen, You Zhi Wu, Wei Wang, Hong Shan Chen

研究成果: Contribution to journalArticle査読

4 被引用数 (Scopus)

抄録

The applied electric field on organic heterojunction interface can significantly affect organic photovoltaic (OPV) performance. Here, to explore electric field effects on OPV heterojunction interface, the pentacene/C60 complexes with face-on and edge-on configurations were constructed as model system, based upon quantum chemistry calculations that take into account of solid polarization effects and apply density functional with optimally tuned range separation parameters, we systematically studied the electric fields effects on the complexes’ geometries, electronic structures, excitation and spectral properties, as well as the rate constants of charge transfer (CT), exciton dissociation (ED) and charge recombination (CR) processes. The electric field can effectively modify interface electronic structures and energy level alignments, and the increasing of electric field that is perpendicular to interface can increase CT energetic loss, reduce the lowest CT excitation energy and the open-circuit voltage. The introducing electric field can modulate the kinetics of electron processes at heterojunction interface.

本文言語英語
論文番号112914
ジャーナルComputational and Theoretical Chemistry
1186
DOI
出版ステータス出版済み - 9 15 2020
外部発表はい

All Science Journal Classification (ASJC) codes

  • 生化学
  • 凝縮系物理学
  • 物理化学および理論化学

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