Critical Progress of Polymer Solar Cells with a Power Conversion Efficiency over 18%

Hongyue Tian, Mingxin Zhao, Xiaoling Ma (), Chunyu Xu, Wenjing Xu, Zhongyuan Liu, Miao Zhang () and Fujun Zhang ()
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Hongyue Tian: School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, China
Mingxin Zhao: School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, China
Xiaoling Ma: School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, China
Chunyu Xu: School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, China
Wenjing Xu: School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, China
Zhongyuan Liu: School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, China
Miao Zhang: Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
Fujun Zhang: School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, China

Energies, 2023, vol. 16, issue 11, 1-34

Abstract: The power conversion efficiencies (PCEs) of organic photovoltaics (OPVs) have reached more than 19%, along with the prosperous development of materials and device engineering. It is meaningful to make a comprehensive review of the research of OPVs for further performance improvement. In this review, some typical materials of high-performance OPVs are summarized, including representative polymer donor materials, non-fullerene acceptor materials, and interfacial modification materials, as well as their design rules for molecular engineering. From the point of view of device engineering, active layer treatment and deposition technology are introduced, which can play a critical role in adjusting the degree of molecular aggregation and vertical distribution. Meanwhile, a ternary strategy has been confirmed as an efficient method for improving the performance of OPVs, and the multiple roles of the appropriate third component in the photo-electronic conversion process are emphasized and analyzed. The challenges and perspectives concerning this region are also put forward for further developing high-performance OPVs.

Keywords: organic photovoltaics; ternary strategy; bulk-heterojunction; power conversion efficiency (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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