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Synthesis, Characterization and Optical Properties of ZnSe Quantum Dots

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This paper presents the organic synthesis of high quality Zinc Selenide (ZnSe) Quantum Dots (QDs). The size and morphology of quantum dots were analyzed from X-ray diffraction, Scanning electron microscopy. The functional groups attached and optical properties were analyzed using Fourier transform infrared spectroscopy UV-visible spectroscopy, photoluminescence spectroscopy respectively. The band gap of 3.35 eV of ZnSe QDs, effective mass approximation and photoluminescence blue shift further confirms the narrow size of particles. It can be concluded that organic synthesis method is quite competitive for the preparation of highly luminescent ZnSe QDs. The proposed method of ZnSe nanocrystal can be extended to a preparation of a more complex structure where the ZnSe core is consecutively capped with CdS and ZnS shells.
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Keywords: Crystal Structure; Organic Synthesis; Scanning Electron Microscopy; Semiconductors

Document Type: Research Article

Affiliations: 1: Centre for Converging Technologies, University of Rajasthan, Jaipur 302004, India 2: Semi-Conductors and Polymer Science Laboratory, Department of Physics, University of Rajasthan, Jaipur 302004, India

Publication date: November 1, 2016

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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