IYPE, Mercy; VARGHESE, Shaji; MATHEW, E.J. Determination of the Energy Band Gap and Absorption Coefficient of Thin Films of Chemically Deposited Lead Sulphide, Copper Sulphide and Multilayer Lead Sulphide-Copper Sulphide Thin Films . Asian Journal of Chemistry, [S. l.], v. 14, n. 2, p. 927–933, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/22186. Acesso em: 26 aug. 2024.