Joshi, Amish G. and Sahai, Sonal and Gandhi, Namita and Y. G. , Radha Krishna and Haranath, D. (2010) Valence band and core-level analysis of highly luminescent ZnO nanocrystals for designing ultrafast optical sensors. Applied Physics Letters, 96 (12). 123102-1-123102-3. ISSN 1077-3118

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The detailed surface analysis such as survey scan, core-level, and valence band spectra of highly luminescent ZnO:Na nanocrystals were studied using the x-ray photoelectron spectroscopy to establish the performed presence of Na+ ions. The observed increase in band gap from 3.30 (bulk) to 4.16 eV (nano), is attributed to the quantum confinement of the motion of electron and holes in all three directions. The photoluminescence and decay measurements have complemented and supported our study to design an efficient and ultrafast responsive optical sensing device.

Item Type: Article
Subjects: Physics
Depositing User: Ms Neetu Chandra
Date Deposited: 07 Aug 2012 12:27
Last Modified: 07 Aug 2012 12:27

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