Cathodoluminescence of Cr-doped diamond-like carbon film by filtered cathodic vacuum arc plasma

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Title:	Cathodoluminescence of Cr-doped diamond-like carbon film by filtered cathodic vacuum arc plasma
Authors:	Huang, MW (Huang, Meng-Wen) Jao, JY (Jao, Jui-Yun) Lin, CC (Lin, Chun-Chun) Hsieh, WJ (Hsieh, Wei-Jen) Yang, YH (Yang, Yu-Hsiang) Cheng, LS (Cheng, Li-Shin) Shieu, FS (Shieu, F.S.) Shih, HC (Shih, Han C.)
Contributors:	Inst Mat Sci & Nanotechnol
Keywords:	Luminescence X-ray photoelectron spectroscopy Raman Diamond-like carbon
Date:	2012-12
Issue Date:	2013-02-18 15:56:18 (UTC+8)
Abstract:	Cr doped diamond-like carbon (DLC:Cr) film was synthesized in various flow rates of C2H2/Ar under a substrate voltage of -50 V at 500 degrees C by a filtered cathodic vacuum arc plasma. This work has found that the structure of the films was correlated to the flow rate of C2H2/Ar but the luminescence properties are similar. The cathodoluminescence spectra of DLC:Cr films obtained at 1.9-2.4 eV verifies that the luminescence from the films is in the visible region. The incorporation of Cr into the carbon network results in red emission shifted to 1.99 eV and the orange emission (2.03 eV) also appeared due to the transitions between chromium-related electron levels and sigma* states. The peak at 2.10 eV may result from the defects of the structures in DLC:Cr films. (C) 2012 Published by Elsevier B.V.
Relation:	APPLIED SURFACE SCIENCE 卷: 261 頁數: 21-24
Appears in Collections:	[Department of Chemical & Materials Engineering] journal articles

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