Electronic properties of a-CNx thin films:: An x-ray-absorption and photoemission spectroscopy study -: art. no. 033708

被引：43

作者：

Ray, SC ^{[1
]}

Pao, CW

Chiou, JW

Tsai, HM

Jan, JC

Pong, WF

McCann, R

Roy, SS

Papakonstantinou, P

McLaughlin, JA

机构：

[1] Tamkang Univ, Dept Phys, Tamsui 251, Taiwan

[2] Univ Ulster, Sch Elect & Mech Engn, NRI, Newtownabbey BT37 0QB, Antrim, North Ireland

来源：

JOURNAL OF APPLIED PHYSICS | 2005年 / 98卷 / 03期

关键词：

D O I：

10.1063/1.1994933

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electronic properties of amorphous carbon nitride were studied by x-ray-absorption near-edge structure (XANES) and valence-band photoelectron spectroscopy (PES). The nitrogen incorporation was found to induce graphitization, as evidenced by an increase of the sp(2) cluster in C and N K-edge XANES spectra. The structure is found to be similar to pyridine. Hybridized C-N bond lengths were determined from the position of the sigma(*) resonance of XANES spectra and the obtained results suggest sp(2) hybridization. A valence-band PES spectrum showed that the p-pi band became more intense than the p-sigma band upon higher at. % nitrogen addition, which confirmed the role played by the pi bonds in controlling the electronic structure of a-CNx films. (c) 2005 American Institute of Physics.

引用

页数：4

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