Abstract

In recent years, non-fullerene acceptor materials for organic solar cells ( OSCs ) have attracted much attention. Among them, ITIC, Y6 and perylene diimide ( PDI ) have been widely studied because of their easy structure regulation. The application and development of ITIC and its derivatives, Y6, PDI and its derivatives in ternary blend organic solar cells are reviewed in detail. This work focuses on the molecular structure optimization method and the selection of third component materials. At present, the efficiency of organic solar cells has exceeded 18%, but the relationship between molecular structure and photovoltaic performance needs further exploration. Optimizing the synthesis route is still an important research direction in this field.

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