id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
american_scientific_journal-6057	Liu, Haoxuan ; Zhang, Haiming 	Structural, Electronic and Optical Properties of CsMI3(M=Ge,Sn,Pb) Perovskite from First Principles	2020	12	.pdf	application/pdf	3780	237	59	Due to the systematic study of all of the Pb elements be replaced by the fourth main group elements, the study of physical properties of perovskite materials after the replacement is relatively rare, the purpose of this paper is to replace the Pb element with the Ge, Sn element of the fourth main group based on density functional theory, and then systematically study the photoelectric performance and the band gap differences among the CsMI3(M= Ge, Sn, Pb), with the intention of reducing the Pb element in the material[7]. However, the Pb element contained in it will not only pollute the environment, but also affect the commercial production of perovskite materials.	cache/american_scientific_journal-6057.pdf	txt/american_scientific_journal-6057.txt