Band gap determination of Ni�?�Zn ferrites

[摘要] Nanocomposites of Niâ€�?�Zn with copolymer matrix of aniline and formaldehyde in presence of varying concentrations of zinc ions have been studied at room temperature and normal pressure. The energy band gap of these materials are determined by reflection spectra in the wavelength range 400â€�??850 nm by spectrophotometer at room temperature. From the analysis of reflection spectra, nanocomposites of copolymer of aniline and formaldehyde with Ni$_{1â€�?�x}$Zn$_x$Fe₂O₄ (ð‘�? = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0) have been found to have direct band gaps ranging from 1.50â€�??1.66 eV.

[学科分类] 材料工程

[关键词] Nanocomposite;optical properties;reflection spectra.