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RSS FeedsEnergies, Vol. 16, Pages 4494: Critical Progress of Polymer Solar Cells with a Power Conversion Efficiency over 18% (Energies)

 
 

2 june 2023 11:21:07

 
Energies, Vol. 16, Pages 4494: Critical Progress of Polymer Solar Cells with a Power Conversion Efficiency over 18% (Energies)
 


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.


 
79 viewsCategory: Biophysics, Biotechnology, Physics
 
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