A series of readily accessible and scalable benzo[1,2-b:4,5-b′]dithiophene (BDT)-2,5-dithienyl-thieno[3,4-c]pyrrole-4,6-dione (TPD-T2)-based donor polymers are utilized in organic photovoltaic (OPV) cells blended with the non-fullerene acceptor IT-4F. All polymers readily dissolve in chlorine-free solvents such as xylene, and the corresponding photoactive blend films can be processed in ambient from this solvent to fabricate cells with power conversion efficiencies (PCEs) >12%–14%. Furthermore, the blend processing and OPV metrics are remarkably insensitive to the processing methodology (spin coating versus blade coating), processing solvent, polymer molecular mass and dispersity index, and the results were rationalized by UV-vis, PL, fsTA, AFM, TEM, GIWAXS, and SCLC measurements. These properties enable the first OPV modules, processed in ambient from a benign solvent, with a certified PCE of 10.1% for an area of 20.4 cm² and >7% after light soaking. The same module also delivers a power of ∼40 μW/cm² (PCE ∼22%) under indoor lighting.

一系列易于获得且可扩展的苯并[1,2-b：4,5-b']二噻吩（BDT）-2,5-二噻吩并噻吩并[3,4-c]吡咯-4,6-二酮（TPD基于-T2）的供体聚合物用于与非富勒烯受体IT-4F混合的有机光伏（OPV）电池中。所有聚合物都容易溶于无氯溶剂（例如二甲苯）中，并且相应的光敏共混膜可以在环境中用该溶剂进行加工，从而制成功率转换效率（PCE）> 12％–14％的电池。此外，共混物的加工和OPV指标对加工方法（旋涂与刮涂），加工溶剂，聚合物分子量和分散指数均不敏感，并且通过UV-vis，PL，fsTA，AFM，TEM对结果进行了合理化，GIWAXS和SCLC测量。这些属性可启用第一个OPV模块，轻度浸泡后为²和> 7％。在室内照明下，相同的模块还提供约40μW / cm ²的功率（PCE约22％）。