Effect of deposition temperature on chemical composition and electronic properties of amorphous carbon nitride (a-CNx) thin films grown by plasma assisted pulsed laser deposition

被引:26
作者
Cappelli, E. [1 ]
Trucchi, D. M. [1 ]
Kaciulis, S. [2 ]
Orlando, S. [3 ]
Zanza, A. [1 ]
Mezzi, A. [2 ]
机构
[1] CNR IMIP, I-00016 Rome, Italy
[2] CNR ISMN, I-00016 Rome, Italy
[3] CNR IMIP Sez Potenza, I-85050 Potenza, Italy
关键词
Carbon nitride; Thin films; Plasma assisted deposition; Pulse laser deposition; X-ray photoelectron spectroscopy; Surface conductivity; DIAMOND-LIKE CARBON; MECHANICAL-PROPERTIES; NITROGEN; ABLATION; GRAPHITE; TRANSFORMATION;
D O I
10.1016/j.tsf.2011.01.194
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of deposition temperature and nitrogen inclusion in amorphous carbon (a-C) films, deposited by plasma enhanced pulsed laser deposition, on chemical composition and electronic transport has been studied. a-CNx films were deposited on Si (100) by pulsed ArF laser ablation of a graphite target, under N-2 atmosphere. A radiofrequency (13.56 MHz RF) apparatus was used to generate plasma of excited nitrogen species, and its effect on nitrogen uptake and CNx film formation has been studied. Chemical and micro-structural changes associated to increased deposition temperature and nitrogen incorporation were examined by x-ray photoelectron spectroscopy; electrical properties were analyzed by the four-point-probe methods. Temperature-dependent conductivity measurements are tentatively interpreted and discussed in reference to chemical composition. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:4059 / 4063
页数:5
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