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- W2444415357 abstract "Commercial ZnO:Zn and undoped ZnO with a hexagonal wurtzite structure (JCPDS 80-0075) were studied. The direct optical bandgaps were 3.25 and 3.28 eV for the undoped and ZnO:Zn, respectively. Undoped ZnO exhibited strong ultraviolet band to band emission as well as weak deep level defect emission around the green, orange, and red regions. ZnO:Zn emits only green light centered at 514 nm which was attributed to oxygen vacancies. Electron irradiated degradation of the ZnO:Zn sample showed a rapid initial decrease in cathodoluminescence intensity and then a subsequent recovery and increase to up to double the initial value during prolonged electron irradiation. Deconvoluted peaks of the O1s x-ray photoelectron peaks confirmed the presence of oxygen-related defects in both samples. The ZnO:Zn sample was found to be very stable under electron bombardment, which makes it suitable for the use in field emission displays." @default.
- W2444415357 created "2016-06-24" @default.
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- W2444415357 date "2016-06-13" @default.
- W2444415357 modified "2023-10-16" @default.
- W2444415357 title "Surface analysis and cathodoluminescence degradation of undoped ZnO and ZnO:Zn phosphors" @default.
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- W2444415357 doi "https://doi.org/10.1116/1.4953561" @default.
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