摘要
The toxicity issue of lead hinders large-scale commercial production and photovoltaic field application of lead halide perovskites.Some novel non-or low-toxic perovskite materials have been explored for development of environmentally friendly lead-free perovskite solar cells(PSCs).This review studies the substitution of equivalent/heterovalent metals for Pb based on first-principles calculation,summarizes the theoretical basis of lead-free perovskites,and screens out some promising lead-free candidates with suitable bandgap,optical,and electrical properties.Then,it reports notable achievements for the experimental studies of lead-free perovskites to date,including the crystal structure and material bandgap for all of lead-free materials and photovoltaic performance and stability for corresponding devices.The review finally discusses challenges facing the successful development and commercialization of lead-free PSCs and predicts the prospect of lead-free PSCs in the future.
基金
financial support from the National Key Research and Development Program of China(Grant No.2017YFB0404501)
the National Major Fundamental Research Program of China(Grant No.91833306)
the National Natural Science Foundation of China(Grant Nos.62074083,62005131,61705111 and 61704091)
the Science Fund for Distinguished Young Scholars of Jiangsu Province of China(Grant No.BK20160039)
the Natural Science Foundation of Jiangsu Province(Grant Nos.BM2012010 and BK20170899)
the Priority Academic Program Development of Jiangsu Higher Education Institutions(Grant No.YX030003)
the Jiangsu National Synergetic Innovation Center for Advanced Materials
the Synergetic Innovation Center for Organic Electronics and Information Displays
the National Postdoctoral Program for Innovative Talents(Grant No.BX201700122)
the Open Foundation from Jilin University(Grant Nos.IOSKL2017KF04 and IOSKL2018KF01)。
