NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.16 [2009] >
IJEMS Vol.16(3) [June 2009] >


Title:  Role of SiO2 in Zn2SiO4:Mn2+ phosphor used in optoelectronic materials
Authors: Parmar, M C
Zhuang, W D
Murthy, K V R
Huang, X W
Hu, Y S
Natarajan, V
Keywords: Phosphors
X-ray method
Photoluminescence
Zn2SiO4-Mn2+
Issue Date: Jun-2009
Publisher: CSIR
Abstract: Zn2-xMnxSiO4 is a classical green phosphor, and it has been used in many applications, such as CCFL, CRT, PDP etc. In this paper, Zn2SiO4:Mn2+ green phosphor is fabricated with the solid-state reaction method. Photoluminescence and crystalline properties are examined as functions of the firing temperatures. Zn2-xMnxSiO4 is ground and fired at 1200oC for 4 h in air, but intensity of emission is weak. Therefore, the conditions of firing are changed and Zn2-xMnxSiO4 are ground and fired at 1000oC for 2 h in air and again ground and fired at 1200 oC for 4 h in air respectively. When varies SiO2 value from 0.9 to 1.8 however the ZnO is 1.92 as well as MnCO3 is 0.08 are constant, The SiO2 concentration (1.1) show good PL spectra. The PL peak observed at 524 nm in these phosphors suggests their potential as green emitting phosphors under 254 nm excitation.
Page(s): 185-187
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Source:IJEMS Vol.16(3) [June 2009]

Files in This Item:

File Description SizeFormat
IJEMS 16(3) 185-187.pdf515.45 kBAdobe PDFView/Open
 Current Page Visits: 501 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 555297 since 06-Feb-2009  Last updated on 15-Jul-2014Webmaster: nopr@niscair.res.in