Recently developed benzodithiophene based organic solar cells: A review on materials and strategies

Cevher, Duygu
Cevher, Sevki Can
Çırpan, Ali
Organic solar cells (OSCs) a class of emerging photovoltaics for potentially disruptive technology have made progress significantly over the past two decades owing to their advantages of being cost-effective, having a low carbon footprint, enabling the production of flexible, semitransparent, and lightweight devices. In this prosperous field, the design and application of new materials had a great impact on the advancement of the performance of the devices. In the majority of works, the optical-active layer of devices comprises a polymer donor and a small molecule acceptor. A polymer donor is designed with a strategy of alternating an electron-donating unit and an electron-accepting unit. Among numerous electron-donating moieties, benzodithiophene-based polymers have exhibited a distinguished photovoltaic performance and break a 19% efficiency barrier in OSC devices. In this review article, we offered an overview of recent developments in benzodithiophene-bearing polymeric materials by giving special attention to modifications of backbones, functional groups, alkyl chains, and their impact on device performance. We purposed to provide a guideline about the chemical structureproperty relationship in terms of absorption profile, band gap, energy levels and device performance indexes.
Citation Formats
D. Cevher, S. C. Cevher, and A. Çırpan, “Recently developed benzodithiophene based organic solar cells: A review on materials and strategies,” MATERIALS TODAY COMMUNICATIONS, vol. 37, pp. 107524–107566, 2023, Accessed: 00, 2023. [Online]. Available: