Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1668341 | Thin Solid Films | 2011 | 5 Pages |
Abstract
The effect of annealing on structural, electrical, and optical properties of Ga-doped ZnO (GZO) films prepared by RF magnetron sputtering was investigated in air and nitrogen. GZO films are polycrystalline with a preferred 002 orientation. The resistivities of annealed films are larger than the as-deposited. The transmittance in the near IR region increases greatly and the optical band gap decreases after annealing. The photoluminescence spectra is composed of a near band edge emission and several deep level emissions (DLE) which are dominated by a blue emission. After annealing, these DLEs are enhanced evidently.
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Authors
F. Wu, L. Fang, Y.J. Pan, K. Zhou, H.B. Ruan, G.B. Liu, C.Y. Kong,