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Title: Surface electronic properties of ZnO nanoparticles
Authors: Ton-That, C
Phillips, MR
Foley, M
Moody, SJ
Stampfl, APJ
Keywords: Photoelectron spectroscopy
Zinc oxides
Issue Date: 30-Jun-2008
Publisher: American Institute of Physics
Citation: Ton-That, C., Phillips, M. R., Foley, M., Moody, S. J., & Stampfl, A. P. J. (2008). Surface electronic properties of ZnO nanoparticles. Applied Physics Letters, 92(26), 3. doi:10.1063/1.2952955
Abstract: The surface electronic structure of ZnO nanoparticles has been studied with photoemission and x-ray absorption spectroscopies. Contrary to expectation, ZnO:Zn phosphor nanoparticles were found to contain a lower oxygen vacancy density on the surface than undoped ZnO counterparts, but oxygen vacancies are in different chemical environments. Cathodoluminescence shows intense green luminescence from the ZnO:Zn surface, while the undoped nanoparticles exhibit only the near-band-edge emission. The results indicate the roles of surface oxygen vacancies and their environment in the previously unexplained green luminescence from the ZnO:Zn material. © 2008, American Institute of Physics
Gov't Doc #: 1387
ISSN: 0003-6951
Appears in Collections:Journal Articles

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