Affiliation:
1. Department State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology School of Microelectronics Xidian University 710071 Xi'an China
2. Advanced Interdisciplinary Research Center for Flexible Electronics Academy of Advanced Interdisciplinary Research Xidian University 710071 Xi'an China
3. Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE) State Key Laboratory of Polymer Materials Engineering National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan) College of Chemistry Sichuan University 610064 Chengdu China
Abstract
AbstractPerovskite solar cells (PSCs) are considered as a promising photovoltaic technology due to their high efficiency and low cost. However, their long‐term stability, mechanical durability, and environmental risks are still unable to meet practical needs. To overcome these issues, we designed a multifunctional elastomer with abundant hydrogen bonds and carbonyl groups. The chemical bonding between polymer and perovskite could increase the growth activation energy of perovskite film and promote the preferential growth of high‐quality perovskite film. Owing to the low defect density and gradient energy‐level alignment, the corresponding device exhibited a champion efficiency of 23.10 %. Furthermore, due to the formation of the hydrogen‐bonded polymer network in the perovskite film, the target devices demonstrated excellent air stability and enhanced flexibility for the flexible PSCs. More importantly, the polymer network could coordinate with Pb2+ ions, immobilizing lead atoms to reduce their release into the environment. This strategy paves the way for the industrialization of high‐performance flexible PSCs.
Funder
National Natural Science Foundation of China
Key Technologies Research and Development Program
Subject
General Chemistry,Catalysis
Cited by
18 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