Article ID Journal Published Year Pages File Type
728690 Materials Science in Semiconductor Processing 2014 8 Pages PDF
Abstract

Four-fold enhancement in emission in the blue region is observed for the first time from sol–gel deposited calcium doped zinc oxide (Zn1−xCaxO) nanophosphor films having a hexagonal wurtzite structure. A 4.28% increase in the band gap has been obtained by introducing very small concentration (1.47 at%) of Ca dopant. A blue-shift of 55 meV in PL emission in UV region occurs with increase in dopant concentration. Optical transmission, FTIR spectra and surface structure of the films have been studied. Dopant concentration in the films is determined by EDX.

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Physical Sciences and Engineering Engineering Electrical and Electronic Engineering
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