Toward High-Performance Polymer Photovoltaic Devices for Low-Power Indoor Applications

Shun Shing Yang, Zong Chun Hsieh, Muchamed L. Keshtov, Ganesh D. Sharma, Fang Chung Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Scopus citations


This article describes the performance of organic photovoltaic (OPV) devices, incorporating three different polymer/fullerene derivative blends, under low-level lighting conditions. The devices exhibit much higher power conversion efficiencies (PCEs) under indoor lighting conditions than they do under sunlight. The best-performing device is capable of delivering a power output of 22.57 μW cm−2, corresponding to a PCE of 13.76%, under illumination with indoor lighting conditions at 500 lux. Increasing the open-circuit voltage (Voc) of the OPV devices is the most critical factor for achieving high device performance for low-power indoor applications. Therefore, the device power output will be maximized if we could obtain a larger energy difference between the highest occupied molecular orbital of the polymer donor and the lowest unoccupied molecular orbital of the electron acceptor, thereby ensuring a high value of Voc.

Original languageEnglish
Article number1700174
JournalSolar RRL
Issue number12
StatePublished - 1 Dec 2017


  • indoor
  • internet of things
  • photovoltaic
  • polymers

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