Please use this identifier to cite or link to this item:
|Title:||Water-induced negative electron affinity on diamond (100)|
|Authors:||Gao, X. |
|Citation:||Gao, X., Liu, L., Qi, D., Chen, S., Wee, A.T.S., Ouyang, T., Loh, K.P., Yu, X., Moser, H.O. (2008-02-21). Water-induced negative electron affinity on diamond (100). Journal of Physical Chemistry C 112 (7) : 2487-2491. ScholarBank@NUS Repository. https://doi.org/10.1021/jp0726337|
|Abstract:||The interaction of water vapor on clean diamond (100) has been studied using ultraviolet photoemission spectroscopy (UPS), X-ray photoemission spectroscopy (XPS), X-ray-absorption near-edge structure (XANES) spectroscopy, and high-resolution electron energy loss spectroscopy (HREELS). It is shown that water dissociates at room temperature on clean diamond forming C-H and C-OH bonds, resulting in a surface dipole layer which produces the condition of negative electron affinity (NEA). The strong polarization dependence of the O K XANES could be associated with the out-of-plane orientation of the OH bonds. Density functional theory (DFT) calculations confirm the existence of NEA on this surface with a mixture of hydrogen and hydroxyl (OH) terminations. © 2008 American Chemical Society.|
|Source Title:||Journal of Physical Chemistry C|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Sep 13, 2018
WEB OF SCIENCETM
checked on Sep 4, 2018
checked on Jun 1, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.