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Title: Study of optical and structural properties of CdSe quantum dot embedded in PVA polymer matrix

To enhance the properties and applicability of devices it is essential to incorporate semiconductor nanoparticles into polymer matrix. This introduces a new branch of science which includes device fabrications such as gas sensors, nonlinear optics, catalysis etc. Herein, we have synthesized CdSe/PVA nanocomposite (NC) material using wet chemical synthesis technique. The XRD studies revealed the formation of crystalline structure of CdSe nanoparticles (NP’s) and PVA NC’s with an average size of 100 nm and 5 nm respectively. Energy band gap is determined using UV-VIS Spectroscopy. A red shift in the absorption edge of CdSe/PVA NC is observed with respect to CdSe Np’s, The photoluminescence spectra also show red shift for CdSe/PVA NC as compared to CdSe NP’s Thus the use of CdSe/PVA for solar cell application would be more preferable than CdSe NP’s.
Authors:
;  [1]
  1. Department of Applied Sciences ITM University, HUDA Sector-23 A, Gurgaon, 122017 (Haryana) INDIA (India)
Publication Date:
OSTI Identifier:
22488859
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1675; Journal Issue: 1; Conference: AMRP-2015: 4. national conference on advanced materials and radiation physics, Longowal (India), 13-14 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE; ABSORPTION; ABSORPTION SPECTROSCOPY; CADMIUM SELENIDES; CATALYSIS; COMPARATIVE EVALUATIONS; MATRIX MATERIALS; NANOCOMPOSITES; NANOPARTICLES; NONLINEAR OPTICS; PHOTOLUMINESCENCE; PVA; QUANTUM DOTS; RED SHIFT; SEMICONDUCTOR MATERIALS; SOLAR CELLS; SYNTHESIS; ULTRAVIOLET SPECTRA; VISIBLE SPECTRA; X-RAY DIFFRACTION