New advances in benzodithiophene (BDT)-based small molecules in non-fullerence organic solar cells

被引：1
作者：
Li, Jing [1 ,2 ]
Lin, Min [1 ]
Wang, Han [3 ]
Iqbal, Javed [4 ,5 ]
Wang, Kai [1 ]
机构：
[1] Qingdao Univ, Coll Mat Sci & Engn, Qingdao, Peoples R China
[2] Northwestern Polytech Univ, Inst Flexible Elect IFE, Xian 710072, Peoples R China
[3] Xian Polytech Univ, Sch Management, Xian, Peoples R China
[4] Univ Bahrain, Coll Sci, Dept Chem, Sakhir 31038, Bahrain
[5] Univ Agr Faisalabad, Dept Chem, Faisalabad 38000, Pakistan
来源：
DYES AND PIGMENTS | 2025年 / 233卷
关键词：
Benzodithiophene (BDT) unit; Small molecule donors; Organic solar cells; Materials design; Morphology controlling; PHOTOVOLTAIC PERFORMANCE; SIDE-CHAINS; EFFICIENCY; DONOR;
D O I：
10.1016/j.dyepig.2024.112508
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The power conversion efficiencies (PCEs) of non-fullerence organic solar cells (OSCs) have exceeding 20 %, largely attributable to the availability of Y-series acceptor materials. Most current high-efficiency OSCs utilize polymer donors, in comparison with polymer donors, small molecule (SM) donor materials offer distinct advantages such as facile synthesis, high yields, and minimal batch-related issues, thereby facilitating the commercialization of cost-effective OSCs. Currently, the PCE of OSCs employing SM donors have surpassed 20 %. This review elucidates significant recent advancements of SM donors, focusing particularly on the benzodithiophene (BDT) unit derivatives, and investigates how the chemical structure of SM donors impacts molecular conformation and stacking patterns. Additionally, we explore criteria for donor-acceptor materials compatibility and methods for morphological control. Finally, we outline persistent challenges and provide insights into the future development of small molecule donor-based OSCs.
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页数：13
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