Red shift in absorption edge of Cd1−x Ni x S dilute magnetic semiconductor nanofilms
Source abstract
Abstract
Nickel-doped cadmium sulphide dilute semiconductor nanofilms (Cd1−x Ni x S, 0 ≤ x ≤ 0.09) have been investigated using atomic force microscopy, scanning electron microscopy, Fourier infrared transform and UV–Vis spectroscopy. With increasing Ni content a decrease in average crystallite size (26–10 nm) and surface roughness has been found. A red shift in optical band gap has been observed with decrease in average crystallite size, which is against quantum confinement.
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Research context
OpenAlex topics: Quantum Dots Synthesis And Properties · Chalcogenide Semiconductor Thin Films · ZnO doping and properties
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