Abstract
The room-temperature fluorescence spectroscopy of zinc telluride quantum dots is investigated. ZnTe quantum dots are synthesized by a chemical route in ethylene glycol with different reactant concentrations and reaction temperatures. Prepared samples are characterized by X-ray diffractometry (XRD) and high resolution transmission electron microscopy. XRD investigation shows the cubic structured ZnTe nanoparticles. The size measurement shows an approximate size of 4-12 nm quantum dots. UV-Vis absorption spectroscopy shows the size-quantization effect and the band gap energy increases by an amount 2.16 eV of the quantum dots. Furthermore as the chemical parameters change, the size of quantum dot changes systemically and the fluorescence peak is observed in 554 nm – 585 nm.
Keywords: Chemical route, ZnTe, Quantum dots, Fluorescence.
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Nanotechnology for Energy Harness and Material Development
The energy industry is one of the many that is being revolutionized by nanotechnology. There is great hope for the commercialization of these breakthroughs since they have the potential to make energy production safer, far more sustainable, greater efficient, and less expensive. Nanotechnology is being studied for its potential to ...read more
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