Chemical States of Nitrogen in ZnO Studied by near-edge X-ray Absorption Fine Structure and Core-level Photoemission Spectroscopies
Date
2006
Authors
Petravic, Mladen
Deenapanray, Prakash
Coleman, Victoria A
Jagadish, Chennupati
Kim, K J
Kim, Bongsoo
Koike, Kazuto
Sasa, Shigehiko
Inoue, Masataka
Yano, Mitsuaki
Journal Title
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Volume Title
Publisher
Elsevier
Abstract
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.
Description
Keywords
Keywords: Ion bombardment; Ions; Structure (composition); X ray photoelectron spectroscopy; Zinc oxide; NEXAFS; Nitrogen ions; Photoemission spectroscopy; Nitrogen NEXAFS; Nitrogen ions; Photoemission spectroscopy; ZnO
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Source
Surface Science
Type
Journal article
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2037-12-31