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Proceedings Paper

Electronic state and down-conversion effect of Y-doped ZnO
Author(s): Dong-Yoon Lee; Won-Jae Lee; Jae-Sung Song; Hyun-Ju Kim; Bo-Kun Koo
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Paper Abstract

The electronic state of Y doped ZnO (YZO) was calculated using the density functional theory. In this study, the program used for the calculation on theoretical structures of ZnO and YZO was Vienna Ab-initio Simulation Package (VASP), which is a sort of pseudo potential method. The detail of electronic structure was obtained by the discrete variational Xα (DV-Xα) method, which is a sort of molecular orbital full potential method. The density of state and energy levels of dopant elements was shown and discussed in association with optical properties, especially related to down-conversion effect. The down-conversion effect of YZO was experimentally investigated by preparing thin films deposited on F doped SnO2 (FTO) glass substrates by sol-gel method using the spin-coating system. A homogeneous and stable solution was prepared by dissolving acetates in the solution added diethanolamine as sol-gel stabilizer. In order to confirm a ultraviolet ray interruption and down-conversion effects, the transmission spectrum and the fluorescent spectrum of YZO films were estimated. The results obtained by experiment were compared with the calculated structure.

Paper Details

Date Published: 18 January 2006
PDF: 5 pages
Proc. SPIE 6038, Photonics: Design, Technology, and Packaging II, 60381J (18 January 2006); doi: 10.1117/12.638146
Show Author Affiliations
Dong-Yoon Lee, Korea Electrotechnology Research Institute (South Korea)
Won-Jae Lee, Korea Electrotechnology Research Institute (South Korea)
Jae-Sung Song, Korea Electrotechnology Research Institute (South Korea)
Hyun-Ju Kim, Korea Electrotechnology Research Institute (South Korea)
Bo-Kun Koo, Korea Electrotechnology Research Institute (South Korea)


Published in SPIE Proceedings Vol. 6038:
Photonics: Design, Technology, and Packaging II
Derek Abbott; Yuri S. Kivshar; Halina H. Rubinsztein-Dunlop; Shanhui Fan, Editor(s)

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