Chemical States of Nitrogen in ZnO Studied by near-edge X-ray Absorption Fine Structure and Core-level Photoemission Spectroscopies
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Petravic, Mladen; Deenapanray, Prakash; Coleman, Victoria A; Jagadish, Chennupati; Kim, K J; Kim, Bongsoo; Koike, Kazuto; Sasa, Shigehiko; Inoue, Masataka; Yano, Mitsuaki
Description
Interaction of low-energy nitrogen ions with ZnO surface has been studied by photoemission spectroscopy (PES) around N 1s core-level and near-edge X-ray absorption fine structure (NEXAFS) around N K-edge. Nitrogen can break Zn-O bonds at the surface and form N-O, Zn-N or Zn-N-O bonds, characterised by specific chemical shifts in PES or absorption peaks in NEXAFS. A distinctive signal from molecular nitrogen has also been observed in ion-bombarded samples in both NEXAFS and PES.
Collections | ANU Research Publications |
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Date published: | 2006 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/85025 |
Source: | Surface Science |
DOI: | 10.1016/j.susc.2006.01.015 |
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