Affiliation:
1. Institute of Functional Nano & Soft Materials (FUNSOM) Soochow University Suzhou Jiangsu 215123 P. R. China
2. Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow University Suzhou Jiangsu 215123 P. R. China
3. Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices Soochow University 199 Ren‐Ai Road, Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
4. School of Physics Shandong University Jinan 250100 P. R. China
5. Department of Physics University of Yangon Pyay Road Yangon 11181 Myanmar
Abstract
AbstractThe energy disorder originating from quantum dot (QD) size and relevant solid film inhomogeneity is detrimental to the charge transport and efficiency of QD based solar cells. The emergence of halide perovskite QDs (PQDs) have attracted great attention as promising absorbers in QD photovoltaics. However, it is currently difficult in preparing structural uniform PQD film with homogenous energetic landscape, which is essential for highly reproducible and efficient solar cells. Herein, assisted by a bidentate ligand 2,5‐thiophenedicarboxylic acid, a facile solution phase anchoring (SPA) strategy is first reported for design and preparation of all‐inorganic CsPbI3 PQD film with reduced structure and energy disorder. The SPA can enhance PQD dispersion as well as dot‐to‐dot interaction, which is beneficial for fabricating high‐quality PQD arrays and photovoltaic devices. The engineered CsPbI3 PQD solar cell exhibits enhanced reproducibility, and higher open–circuit voltage together with a champion efficiency of 16.14%, which is among the highest report to date. These results are believed to provide design principle of uniform PQDs for high‐performance optoelectronic application.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
China Postdoctoral Science Foundation
Natural Science Foundation of Jiangsu Province
Science and Technology Program of Suzhou
China Association for Science and Technology
Collaborative Innovation Center of Suzhou Nano Science and Technology
Soochow University
Subject
Electrochemistry,Condensed Matter Physics,Biomaterials,Electronic, Optical and Magnetic Materials
Cited by
23 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献