Sol–gel derived AZO thin film with unusual narrow dual emission

2. Zero hunger 0103 physical sciences 02 engineering and technology 0210 nano-technology 01 natural sciences 3. Good health
DOI: 10.1016/j.jlumin.2014.03.062 Publication Date: 2014-04-01T18:15:28Z
ABSTRACT
Abstract AZO (Al:ZnO) nanostructured thin film was prepared by a dip coating technique. An improved sol–gel method was used for the preparation of stable AZO sol with 2 at% Al dopant concentration. Optical properties of AZO thin film have been studied by UV–visible absorption and photoluminescence spectroscopy. Scanning electron microscopy and X-ray diffraction pattern were performed to study the grain size and morphology of AZO thin films. Experimental observations confirmed that the deposited AZO thin film has potential for dual narrow emission in the blue and green regions. Transmission spectrum shows that the prepared thin film is able to transmit above 95% of the light in the visible region. The prepared thin film resistivity is also very low (5.0 Ω cm).
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