Ilmi Rashid, Al-Sharji Houda, Khan Muhammad S
Department of Chemistry, Sultan Qaboos University, P.O. Box 36, 123, Al-Khod, Oman.
Top Curr Chem (Cham). 2022 Mar 5;380(3):18. doi: 10.1007/s41061-022-00372-y.
Domesticating solar energy by exploiting photovoltaic technology has become a quintessential strategy for future global energy production. Since 2015, non-fullerene organic solar cells (NF-OSC) have attracted a great deal of attention owing to the marvellous properties of non-fullerene acceptors (NFA) such as structural versability, broad absorption, suitable energy levels, tunable charge transport and morphology, leading to remarkable accomplishments in power conversion efficiency (PCE) from 1% to nearly 20%. One class of materials is provided by the fused ring aromatic indacenodithiophene (IDT) and its derivatives, which are emerging continuously as promising next-generation building blocks to construct high performance photovoltaic materials. Encouraging PCEs of more than 15% have been achieved in their binary NF-OSCs, while careful device engineering and proper amalgamation of a third component have led to PCEs of almost 18% in ternary devices. This review surveys recent developments in the area of IDT-based materials for photovoltaic applications. Different strategies to develop efficient IDT-based NFA and factors influencing the bandgaps, molecular energy levels, charge transport properties, and film morphologies, as well as the photovoltaic performance of these materials, are discussed.
通过利用光伏技术来驯化太阳能已成为未来全球能源生产的一项核心战略。自2015年以来，非富勒烯有机太阳能电池（NF-OSC）因其非富勒烯受体（NFA）的出色特性，如结构多样性、宽吸收、合适的能级、可调节的电荷传输和形态，而备受关注，这使得其功率转换效率（PCE）从1%提升到近20%，取得了显著成就。稠环芳香茚并二噻吩（IDT）及其衍生物提供了一类材料，它们作为构建高性能光伏材料的有前途的下一代基石不断涌现。在其二元NF-OSC中已实现超过15%的令人鼓舞的PCE，而精心的器件工程和第三组分的适当融合在三元器件中导致了近18%的PCE。本综述概述了基于IDT的光伏应用材料领域的最新进展。讨论了开发高效基于IDT的NFA的不同策略以及影响带隙、分子能级、电荷传输特性和薄膜形态的因素，以及这些材料的光伏性能。
