Abstract
The ultraviolet (UV) and blue luminescence of Zn-rich zinc oxide thin film deposited by electron-beam evaporation have been investigated at room temperature (RT). We observed that the UV and blue electroluminescence (EL) emission band centered around 480 nm which is blue shifted in comparison with that of the ZnO thin film prepared by low pressure metal organic chemical vapor deposition (LP MOCVD). The UV emission is much stronger than blue emission in the photoluminescence (PL) spectra. The field-induced ionization of excited luminescent centers of ZnO:Zn thin film at high electric field and the difference between PL and EL are discussed. The experiments show that the ZnO:Zn thin film provides a hopeful new mechanism to obtain UV and blue emission.
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References
Tang, Z. K., Yu, P., Wong George K. L. et al., Room temperature ultraviolet laser emission from microstructured ZnO thin film, Nonlinear Optics, 1997, 18: 355.
Bagnall, D. M., Chen, Y. F., Zhu, Z., Optically pumped lasing of ZnO at room temperature, Appl. Phys. Lett., 1997, 70: 2230.
Tavernier, P. R., Verghese, P., M., Clarke, D. R., Photoluminescence from laser assisted debonded epitaxial GaN and ZnO films, Appl. Phys. Lett., 1999, 74: 2678.
Segawa, Y., Ohtomo, A., Kawasaki, M. et al., Growth of ZnO thin film by laser MBE: Lasing of exciton at room temperature, Phys. Status Solid B, 1997, 202: 669.
Service, R. F., Will UV lasers beat the blues? Science, 1997, 276: 895.
Kossanyi, J., Kouyate, D., Ronfard-Haret, J. C. et al., Photoluminescence of semiconducting zinc oxide containing rare earth ions as impurities, J. Lumin., 1990, 46: 17.
Bhushan, S., Pandey, A. N., Kaza, B. R., Photo-and electroluminescence of undoped and rare earth doped ZnO electroluminors, J. Lumin. 1997, 20: 29.
Andress, B., Über die Lumineszenz und Absorption von ZnO-Kristallen, Z. Phys. 1962, 170: 1.
Kröger F. A., Vink, H. J., The origin of the fluorescence in self-activated ZnS, CdS, and ZnO, J. Chem. Phys., 1954, 22: 250.
Li, Y., Forsythe, E., Tompa, G. S. et al., Photoluminescence, electroluminescence, and cathodoluminescence of ZnO: Zn phosphor films prepared by MOCVD, Mat. Res. Soc. Symp. Proc., 1997, 441: 615.
Kouyate, D., Ronfard-Haret, J. C., Kossanyi, J., Photo-and electro-luminescence of rare earth-doped semiconducting zinc oxide electrodes emission from both the dopant and the support, J. Lumin., 1991, 50: 205.
Kouyate, D., Ronfard-Haret, J. C., Valat, P. et al., Quenching of zinc oxide photoluminescence by d-and f-transition metal ions, J. Lumin., 1990, 46: 329.
Vavilov, V. S., Radiation ionization processes in germanium and silion crystals, Soviet Phys. Uspekhi, 1962, 40: 761.
Li, Y. B., Hou, Y. B., The local electric field in ZnS: Mn thin film electroluminescence devices, Journal of Functional Materials, (in Chinese), 1997, 28: 482.
Lou, Z. D., Xu, Z., Teng, F. et al., Field-induced ionization of excited luminescent centers at high electric field strength, J. Lumin., 1997, 72-74: 112.
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Yi, L., Xu, Z., Hou, Y. et al. The ultraviolet and blue luminescence properties of ZnO:Zn thin film. Chin.Sci.Bull. 46, 1223–1226 (2001). https://doi.org/10.1007/BF02900608
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DOI: https://doi.org/10.1007/BF02900608