文章基本信息

标题：Potential Substitutes for Replacement of Lead in Perovskite Solar Cells: A Review
本地全文：下载
作者：Ravinder Kour ; Sandeep Arya ; Sonali Verma 等
期刊名称：Global Challenges
印刷版ISSN：2056-6646
电子版ISSN：2056-6646
出版年度：2019
卷号：3
期号：11
页码：1-37
DOI：10.1002/gch2.201900050
语种：English
出版社：John Wiley & Sons, Ltd
摘要：AbstractLead halide perovskites have displayed the highest solar power conversion efficiencies of 23% but the toxicity issues of these materials need to be addressed. Lead‐free perovskites have emerged as viable candidates for potential use as light harvesters to ensure clean and green photovoltaic technology. The substitution of lead by Sn, Ge, Bi, Sb, Cu and other potential candidates have reported efficiencies of up to 9%, but there is still a dire need to enhance their efficiencies and stability within the air. A comprehensive review is given on potential substitutes for lead‐free perovskites and their characteristic features like energy bandgaps and optical absorption as well as photovoltaic parameters like open‐circuit voltage (VOC), fill factor, short‐circuit current density (J SC), and the device architecture for their efficient use. Lead‐free perovskites do possess a suitable bandgap but have low efficiency. The use of additives has a significant effect on their efficiency and stability. The incorporation of cations like diethylammonium, phenylethyl ammonium, phenylethyl ammonium iodide, etc., or mixed cations at different compositions at the A‐site is reported with engineered bandgaps having significant efficiency and stability. Recent work on the advancement of lead‐free perovskites is also reviewed.Potential substitutes for lead‐free perovskitesare discussed for solar cell applications. This review illustrates that the concentration of lead‐free perovskite solution and substrate temperature impact their efficiency and stability. The use of chalcogenide and mixed perovskite materials is an effective strategy for efficient, cheap, and stable solar cells.
关键词：lead‐free perovskitesphotovoltaic parametersstability