Photophysics of organic photovoltaic devices: A review

Chengxi Zhang, Rugeng Liu, Chun Hong Mak, Xingli Zou, Hsin-Hui Shen, Shao-Yuan Leu, Li Ji, Hsien-Yi Hsu

Research output: Contribution to journalReview ArticleOtherpeer-review

6 Citations (Scopus)


The field of organic solar cells (OSCs) has developed rapidly over the last two decades, and polymer solar cells with power conversion efficiencies of 13.1% have been reported. The understanding of the photophysical mechanisms in photovoltaic devices plays a significant role in determining the optoelectronic properties of high-performance OSCs. This review gives a fundamental description of the photophysical mechanisms in OSCs, with the main emphasis on the exciton transfer and charge-transfer mechanisms. In addition, it highlights the capabilities of various experimental techniques for the characterization of energy transfer and charge transport, as well as their roles in dictating the architecture of photovoltaic devices.

Original languageEnglish
Article number021001
Number of pages26
JournalJournal of Photonics for Energy
Issue number2
Publication statusPublished - 1 Apr 2018


  • Charge transport
  • Exciton transfer
  • Organic photovoltaics
  • Photophysics

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