Charge-transfer electronic states in organic solar cells

Veaceslav Coropceanu, Xian Kai Chen, Tonghui Wang, Zilong Zheng, Jean Luc Brédas

研究成果: Contribution to journalReview article査読

102 被引用数 (Scopus)

抄録

In organic solar cells, the charge-transfer (CT) electronic states that form at the interface between the electron-donor (D) and electron-acceptor (A) materials have a crucial role in exciton-dissociation, charge-separation and charge-recombination processes. Since the introduction of active layers consisting of D–A bulk heterojunctions, CT states have been the focus of extensive experimental and theoretical studies. In this Review, we assess the current understanding of CT states and describe how factors such as the geometry of the D–A interface, electronic polarization and the extent of electron delocalization affect their nature and influence the radiative and non-radiative decay processes. We focus on the description and application of fundamental concepts, which provides the framework to discuss the path to organic solar cells with efficiencies comparable to those in inorganic photovoltaic technologies.

本文言語英語
ページ(範囲)689-707
ページ数19
ジャーナルNature Reviews Materials
4
11
DOI
出版ステータス出版済み - 11 1 2019
外部発表はい

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 生体材料
  • エネルギー(その他)
  • 表面、皮膜および薄膜
  • 材料化学

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