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首页> 外文期刊>RSC Advances >The structural evolution of an isoindigo-based non-fullerene acceptor for use in organic photovoltaics
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The structural evolution of an isoindigo-based non-fullerene acceptor for use in organic photovoltaics

机译：基于ISOINDIGO的非富勒烯受体用于有机光伏的结构演变

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The structural evolution of a functional isoindigo-based non-fullerene acceptor led to the development of three new materials to address the deficiencies of the original framework. Owing to the versatility of the structure and the flexibility of the synthetic procedures, these three new materials were accessible from previously optimized reaction conditions and similar precursor materials. The influence of structural modification on the optical, electrochemical and thermal properties were assessed and correlated with DFT calculations to provide compelling evidence for the effect of each substitution and how they relate to each particular adaptation. The structure–property relationships were investigated for their photovoltaic performance in solution processable BHJ devices fabricated in inverted architectures. Evaluation of device performance demonstrated that a single modification did not improve on the efficiency of the original structure, but the combination of both induced non-planarity, and increased electron affinity of the fourth iteration showed the potential of our framework, with PCE reaching 1.9%.
机译：基于功能性的异常的非富勒烯受体的结构演变导致了三种新材料的发展，以解决原始框架的缺陷。由于结构的多功能性和合成程序的灵活性，从前优化的反应条件和类似的前体材料可获得这三种新材料。评估结构改性对光学，电化学和热性能的影响，并与DFT计算相关，以提供每个替换的效果的令人信服的证据以及它们与每个特定适应的效果。研究了结构性质关系，以在倒置架构中制造的解决方案加工BHJ器件中的光伏性能。设备性能的评估表明，单一修改没有提高原始结构的效率，而是两种诱导的非平面性的组合，并增加了第四次迭代的电子亲和力，显示了我们框架的潜力，PCE达到1.9％ 。

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