articleAdvanced MaterialsMar 2, 2023Closed access

Compromising Charge Generation and Recombination of Organic Photovoltaics with Mixed Diluent Strategy for Certified 19.4% Efficiency

TCTianyi ChenSLShuixing LiYLYaokai LiZCZeng ChenHWHaotian Wu

State Key Laboratory of Silicon Materials · Zhejiang University · +2 more institutions

PubMed
Indexed incrossrefpubmed

Abstract

Abstract The ternary blend is demonstrated as an effective strategy to promote the device performance of organic photovoltaics (OPVs) due to the dilution effect. While the compromise between the charge generation and recombination remains a challenge. Here, a mixed diluent strategy for further improving the device efficiency of OPV is proposed. Specifically, the high‐performance OPV system with a polymer donor, i.e., PM6, and a nonfullerene acceptor (NFA), i.e., BTP‐eC9, is diluted by the mixed diluents, which involve a high bandgap NFA of BTP‐S17 and a low bandgap NFA of BTP‐S16 (similar with that of the BTP‐eC9). The BTP‐S17 of better miscibility with BTP‐eC9 can dramatically enhance the open‐circuit voltage…

Citation impact

313
total citations
FWCI
39.01
Percentile
100%
References
66
Citations per year

Authors

14

Topics & keywords

Topics
Keywords
  • Diluent
  • Materials science
  • Organic solar cell
  • Ternary operation
  • Acceptor
  • Optoelectronics
  • Energy conversion efficiency
  • Photovoltaics
UN Sustainable Development Goals
  • Affordable and clean energy
No related works found for this paper.

Funding