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- Title
All-polymer organic solar cells with nano-to-micron hierarchical morphology and large light receiving angle.
- Authors
Zeng, Rui; Zhu, Lei; Zhang, Ming; Zhong, Wenkai; Zhou, Guanqing; Zhuang, Jiaxing; Hao, Tianyu; Zhou, Zichun; Zhou, Libo; Hartmann, Nicolai; Xue, Xiaonan; Jing, Hao; Han, Fei; Bai, Yiming; Wu, Hongbo; Tang, Zheng; Zou, Yecheng; Zhu, Haiming; Chen, Chun-Chao; Zhang, Yongming
- Abstract
Distributed photovoltaics in living environment harvest the sunlight in different incident angles throughout the day. The development of planer solar cells with large light-receiving angle can reduce the requirements in installation form factor and is therefore urgently required. Here, thin film organic photovoltaics with nano-sized phase separation integrated in micro-sized surface topology is demonstrated as an ideal solution to proposed applications. All-polymer solar cells, by means of a newly developed sequential processing, show large magnitude hierarchical morphology with facilitated exciton-to-carrier conversion. The nano fibrilar donor-acceptor network and micron-scale optical field trapping structure in combination contributes to an efficiency of 19.06% (certified 18.59%), which is the highest value to date for all-polymer solar cells. Furthermore, the micron-sized surface topology also contributes to a large light-receiving angle. A 30% improvement of power gain is achieved for the hierarchical morphology comparing to the flat-morphology devices. These inspiring results show that all-polymer solar cell with hierarchical features are particularly suitable for the commercial applications of distributed photovoltaics due to its low installation requirement. A large light-receiving angle in planar solar cells is crucial for flexible installation of distributed photovoltaics. Here, authors report sequential-processed all-polymer solar cells with nano-sized phase separation integrated in micro-sized surface topology and maximum efficiency of over 19%.
- Subjects
PHOTOVOLTAIC power systems; SOLAR cells; ORGANIC thin films; PHOTOVOLTAIC power generation; PHASE separation; ANGLES
- Publication
Nature Communications, 2023, Vol 14, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-023-39832-4