当前位置：
X-MOL 学术
›
ACS Appl. Mater. Interfaces
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Enhancement of the Power-Conversion Efficiency of Organic Solar Cells via Unveiling an Appropriate Rational Design Strategy in Indacenodithiophene-alt-quinoxaline π-Conjugated Polymers
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2018-03-06 00:00:00 , DOI: 10.1021/acsami.7b18381 Christos L. Chochos 1, 2 , Ranbir Singh 3 , Vasilis G. Gregoriou 2, 4 , Min Kim 3 , Athanasios Katsouras 1 , Efthymis Serpetzoglou 5 , Ioannis Konidakis 5 , Emmanuel Stratakis 5 , Kilwon Cho 3 , Apostolos Avgeropoulos 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2018-03-06 00:00:00 , DOI: 10.1021/acsami.7b18381 Christos L. Chochos 1, 2 , Ranbir Singh 3 , Vasilis G. Gregoriou 2, 4 , Min Kim 3 , Athanasios Katsouras 1 , Efthymis Serpetzoglou 5 , Ioannis Konidakis 5 , Emmanuel Stratakis 5 , Kilwon Cho 3 , Apostolos Avgeropoulos 1
Affiliation
|
We report on the photovoltaic parameters, photophysical properties, optoelectronic properties, self-assembly, and morphology variations in a series of high-performance donor–acceptor (D–A) π-conjugated polymers based on indacenodithiophene and quinoxaline moieties as a function of the number-average molecular weight (
), the nature of aryl substituents, and the enlargement of the polymer backbone. One of the most important outcome is that from the three optimization approaches followed to tune the chemical structure toward enhanced photovoltaic performance in bulk heterojunction solar cell devices with the fullerene derivative [6,6]-phenyl-C71-butyric acid methyl ester as the electron acceptor, the choice of the aryl substituent is the most efficient rational design strategy. Incorporation of thienyl rings as substituents versus phenyl rings accelerates the electron–hole extraction process to the respective electrode, despite the slightly lower recombination lifetime and, thus, improves the electrical performance of the device. Single-junction solar cells based on ThIDT-TQxT feature a maximum power-conversion efficiency of 7.26%. This study provides significant insights toward understanding of the structure–properties–performance relationship for D–A π-conjugated polymers in solid state, which provide helpful inputs for the design of next-generation polymeric semiconductors for organic solar cells with enhanced performance.
中文翻译：
在Indacenodithiophene-揭幕通过适当合理的设计策略的有机太阳能电池的电力转换效率的提升中高音喹喔啉π共轭聚合物
我们报告了一系列基于茚并二噻吩和喹喔啉部分的高性能供体-受体（D-A）π共轭聚合物的光电参数，光物理性质，光电性质，自组装和形态变化，它们是数均分子量（），芳基取代基的性质以及聚合物主链的扩大。最重要的结果之一是，从以下三种最优化方法中可以发现，采用富勒烯衍生物[6,6]-苯基-C 71可以使化学结构朝增强整体异质结太阳能电池器件的光伏性能的方向发展。-丁酸甲酯作为电子受体，选择芳基取代基是最有效的合理设计策略。尽管重组寿命略低，但噻吩环作为取代基而不是苯环的结合加速了电子-空穴萃取过程对相应电极的影响，从而改善了器件的电性能。基于ThIDT-TQxT的单结太阳能电池的最大功率转换效率为7.26％。这项研究为理解D-Aπ共轭聚合物固态的结构-性能-性能关系提供了重要的见识，这为设计用于性能增强的有机太阳能电池的下一代聚合物半导体提供了有用的信息。
更新日期：2018-03-06
), the nature of aryl substituents, and the enlargement of the polymer backbone. One of the most important outcome is that from the three optimization approaches followed to tune the chemical structure toward enhanced photovoltaic performance in bulk heterojunction solar cell devices with the fullerene derivative [6,6]-phenyl-C71-butyric acid methyl ester as the electron acceptor, the choice of the aryl substituent is the most efficient rational design strategy. Incorporation of thienyl rings as substituents versus phenyl rings accelerates the electron–hole extraction process to the respective electrode, despite the slightly lower recombination lifetime and, thus, improves the electrical performance of the device. Single-junction solar cells based on ThIDT-TQxT feature a maximum power-conversion efficiency of 7.26%. This study provides significant insights toward understanding of the structure–properties–performance relationship for D–A π-conjugated polymers in solid state, which provide helpful inputs for the design of next-generation polymeric semiconductors for organic solar cells with enhanced performance.
中文翻译：
在Indacenodithiophene-揭幕通过适当合理的设计策略的有机太阳能电池的电力转换效率的提升中高音喹喔啉π共轭聚合物
我们报告了一系列基于茚并二噻吩和喹喔啉部分的高性能供体-受体（D-A）π共轭聚合物的光电参数，光物理性质，光电性质，自组装和形态变化，它们是数均分子量（
），芳基取代基的性质以及聚合物主链的扩大。最重要的结果之一是，从以下三种最优化方法中可以发现，采用富勒烯衍生物[6,6]-苯基-C 71可以使化学结构朝增强整体异质结太阳能电池器件的光伏性能的方向发展。-丁酸甲酯作为电子受体，选择芳基取代基是最有效的合理设计策略。尽管重组寿命略低，但噻吩环作为取代基而不是苯环的结合加速了电子-空穴萃取过程对相应电极的影响，从而改善了器件的电性能。基于ThIDT-TQxT的单结太阳能电池的最大功率转换效率为7.26％。这项研究为理解D-Aπ共轭聚合物固态的结构-性能-性能关系提供了重要的见识，这为设计用于性能增强的有机太阳能电池的下一代聚合物半导体提供了有用的信息。
京公网安备 11010802027423号