articleAdvanced MaterialsAug 8, 2019Closed access

Eco‐Compatible Solvent‐Processed Organic Photovoltaic Cells with Over 16% Efficiency

LHLing HongHYHuifeng YaoZWZiang WuYCYong CuiTZTao Zhang

Chinese Academy of Sciences · Beijing National Laboratory for Molecular Sciences · +4 more institutions

PubMed
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Abstract

Abstract Recent advances in nonfullerene acceptors (NFAs) have enabled the rapid increase in power conversion efficiencies (PCEs) of organic photovoltaic (OPV) cells. However, this progress is achieved using highly toxic solvents, which are not suitable for the scalable large‐area processing method, becoming one of the biggest factors hindering the mass production and commercial applications of OPVs. Therefore, it is of great importance to get good eco‐compatible processability when designing efficient OPV materials. Here, to achieve high efficiency and good processability of the NFAs in eco‐compatible solvents, the flexible alkyl chains of the highly efficient NFA BTP‐4F‐8 (also known as Y6) are modified and…

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533
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Authors

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Topics & keywords

Topics
Keywords
  • Materials science
  • Photovoltaic system
  • Solvent
  • Organic solvent
  • Organic solar cell
  • Chemical engineering
  • Nanotechnology
  • Organic chemistry
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