Toward Fast Screening of Organic Solar Cell Blends
Toward Fast Screening of Organic Solar Cell Blends
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有机太阳能电池混合物的快速筛选
DOI：
10.1002/advs.202000960
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发表时间：
2020-06
期刊：
影响因子：
15.1
通讯作者：
Artem Levitsky;G. Matrone;Aditi Khirbat;I. Bargigia;Xiaolei Chu;Oded Nahor;T. Segal‐Peretz;A. Moulé;L. Richter;Carlos Silva;N. Stingelin;G. Frey
中科院分区：
文献类型：
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作者：
Artem Levitsky;G. Matrone;Aditi Khirbat;I. Bargigia;Xiaolei Chu;Oded Nahor;T. Segal‐Peretz;A. Moulé;L. Richter;Carlos Silva;N. Stingelin;G. Frey
为有机太阳能电池开发的材料系统库不断增加，包括非常有前途的非富勒烯受体和新型高效供体聚合物，需要开发以下方法：i）允许在器件制造之前快速筛选大量供体：受体组合；ii）允许快速阐明加工如何影响器件活性层的最终形态/微观结构。高效、快速的筛选将确保不会遗漏重要的材料组合；它将加速这种替代太阳能电池平台的技术开发，实现更大面积的生产；它将有助于了解活性层随着时间的推移可能发生的结构变化。使用相对高效的聚[(5,6-二氟-2,1,3-苯并噻二唑-4,7-二基)-alt-(3,3'''-二(2-辛基十二烷基)-2,2';5',2'';5'',2'''-四联噻吩-5,5'''-二基)](PCE11):苯基-C61-丁酸酸甲酯受体（PCBM）共混系统，证明通过直接热分析、气相渗透成像和瞬态吸收光谱，可以快速筛选各种共混成分和加工方法，可以获得有希望的组合的信息，可以识别薄膜形成再现性方面的可靠性问题，并深入了解成核剂等加工助剂如何影响结构形成。
The ever increasing library of materials systems developed for organic solar‐cells, including highly promising non‐fullerene acceptors and new, high‐efficiency donor polymers, demands the development of methodologies that i) allow fast screening of a large number of donor:acceptor combinations prior to device fabrication and ii) permit rapid elucidation of how processing affects the final morphology/microstructure of the device active layers. Efficient, fast screening will ensure that important materials combinations are not missed; it will accelerate the technological development of this alternative solar‐cell platform toward larger‐area production; and it will permit understanding of the structural changes that may occur in the active layer over time. Using the relatively high‐efficiency poly[(5,6‐difluoro‐2,1,3‐benzothiadiazol‐4,7‐diyl)‐alt‐(3,3′′′‐di(2‐octyldodecyl)‐2,2′;5′,2′′;5′′,2′′′‐quaterthiophen‐5,5′′′‐diyl)] (PCE11):phenyl‐C61‐butyric acid‐methyl‐ester acceptor (PCBM) blend systems, it is demonstrated that by means of straight‐forward thermal analysis, vapor‐phase‐infiltration imaging, and transient‐absorption spectroscopy, various blend compositions and processing methodologies can be rapidly screened, information on promising combinations can be obtained, reliability issues with respect to reproducibility of thin‐film formation can be identified, and insights into how processing aids, such as nucleating agents, affect structure formation, can be gained.