International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Open Access | Fully Refereed | Peer Reviewed

ISSN: 2319-7064

Downloads: 108

Research Paper | Material Science | India | Volume 6 Issue 8, August 2017

Cu2+ Doped PVA-Capped CdSe Polymer Applications to Blue LED

B. Sekhar, Sk. Muntaz Begum, L. V. Krishna Rao, R. V. S. S. N. Ravikumar

Cu2+ doped CdSe polymer was prepared by using poly vinyl alcohol (PVA) at room temperature. The prepared sample was characterized by Powder X-ray diffraction, optical absorption, Photoluminescence, EPR and FT-IR studies. X-ray diffraction pattern showed the cubic zinc blende crystalline phase of CdSe and the average size of the grains is in the order of 23 nm. Optical absorption spectrum exhibited a broad band at 832 nm which is the characteristic of Cu2+ in distorted octahedral symmetry. EPR results indicate that Cu2+ ion enters the host lattice as tetragonally elongated octahedral site. By correlating optical and EPR data, the evaluated bonding parameters suggested that the bonding between the doped ion and ligands is partially covalent. Luminescence spectrum gives the emission bands in UV and blue region. The calculated CIE chromaticity coordinates from emission spectrum are located in blue region. FT-IR spectrum exhibits the molecular vibrations of PVA in CdSe.

Keywords: A Polymers, B Chemical synthesis, C X-ray diffraction, D Crystal field, DEPR

Edition: Volume 6 Issue 8, August 2017

Pages: 1949 - 1953

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How to Cite this Article?

B. Sekhar, Sk. Muntaz Begum, L. V. Krishna Rao, R. V. S. S. N. Ravikumar, "Cu2+ Doped PVA-Capped CdSe Polymer Applications to Blue LED", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=ART20176259, Volume 6 Issue 8, August 2017, 1949 - 1953

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