Duan Chunhui, Zango Germán, García Iglesias Miguel, Colberts Fallon J M, Wienk Martijn M, Martínez-Díaz M Victoria, Janssen René A J, Torres Tomás
Molecular Materials and Nanosystems, Institute for Complex Molecular Systems, Eindhoven University of Technology, P. O. Box 513, 5600 MB, Eindhoven, The Netherlands.
Department of Organic Chemistry, Universidad Autónoma de Madrid, c/Francisco TomásyValiente 7, Cantoblanco, 28049 Madrid, Spain.
Angew Chem Int Ed Engl. 2017 Jan 2;56(1):148-152. doi: 10.1002/anie.201608644. Epub 2016 Nov 28.
Four hexachlorosubphthalocyanines SubPcCl -X bearing different axial substituents (X) have been synthesized for use as novel electron acceptors in solution-processed bulk-heterojunction organic solar cells. Subphthalocyanines are aromatic chromophoric molecules with cone-shaped structure, good solution processability, intense optical absorption in the visible spectral region, appropriate electron mobilities, and tunable energy levels. Solar cells with subphthalocyanines as the electron acceptor and PTB7-Th as the electron donor exhibit a power conversion efficiency up to 4 % and an external quantum efficiency approaching 60 % due to significant contributions from both the electron donor and the electron acceptor to the photocurrent, indicating a promising prospect of non-fullerene acceptors based on subphthalocyanines and structurally related systems.
已经合成了四种带有不同轴向取代基（X）的六氯代亚酞菁SubPcCl-X，用作溶液处理的体异质结有机太阳能电池中的新型电子受体。亚酞菁是具有锥形结构的芳香发色分子，具有良好的溶液可加工性，在可见光谱区域有强烈的光吸收，适当的电子迁移率和可调能级。以亚酞菁为电子受体、PTB7-Th为电子供体的太阳能电池，由于电子供体和电子受体对光电流都有显著贡献，其功率转换效率高达4%，外部量子效率接近60%，这表明基于亚酞菁和结构相关体系的非富勒烯受体具有广阔的前景。
