Effect of (CuPb) Substitution on Optical Parameters of Bi2-x(CuPb)xSr2Ca2Cu3O10+δ Thin Films

Abstract

Thin films of Bi_2-x(CuPb)_xSr₂Ca₂Cu₃O_10+d compound (x = 0, 0.1, 0.2, and 0.4) were prepared by Pulse laser deposition (frequency 6 Hz, energy 500mJ, pulses 500, vacuum 10^-1 Tor and 1 Cm distance between the substrate and the target) at room temperature of 300 nm thickness onto cleaned glass substrates. Optical measurements for all values of x indicate the same value of transmittance (97.76) but at different positions of wavelengths with shifting towards short wavelength within the extreme wavelength range (200-1100) nm. High optical energy gap for films is at x = 0. The reflectance approaches to zero at for all values of x. Atomic force microscopy and photoluminescence for the films are studied.