Effect of nanoscaled SnO{sub 2} coating on ZnS:Mn phosphors under electron irradiation
- Electronic Materials Laboratory, Corporate R and D Center, Samsung SDI Co., Ltd., 428-5 Gongse-ri, Giheung-eup, Yongin, Gyeonggi 449-577 (Korea, Republic of)
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701 (Korea, Republic of)
The luminescence properties of SnO{sub 2}-coated ZnS:Mn phosphors are investigated. In the case of photoluminescence, emission intensities show little change when SnO{sub 2} is coated on the surface of ZnS:Mn, while in the case of cathodoluminescence (CL), emission intensities vary depending on excitation energies. In order to determine the luminescence behaviors, surface analyses of the phosphors were performed. Auger electron spectroscopy showed that the width of the SnO{sub 2} layer on the ZnS:Mn phosphor was saturated at approximately 120nm. Also, X-ray photoelectron spectroscopy indicated that the SnO{sub 2} layers are well formed and saturated when the molar ratios of Sn/Zn are larger than 0.005. These results suggest that the changes in the CL emissions can be attributed to a lowering of the junction barrier.
- OSTI ID:
- 20729017
- Journal Information:
- Journal of Solid State Chemistry, Vol. 178, Issue 7; Other Information: DOI: 10.1016/j.jssc.2005.04.032; PII: S0022-4596(05)00195-7; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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