Properties and preparation conditions of carbon nitride thin films deposited by laser CVD

被引:27
作者
Falk, F [1 ]
Meinschien, J [1 ]
Schuster, K [1 ]
Stafast, H [1 ]
机构
[1] Inst Phys Hochtechnol, D-07743 Jena, Germany
关键词
chemical vapor deposition; X-ray photoelectron spectroscopy (XPS);
D O I
10.1016/S0008-6223(98)00003-7
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Amorphous CN, thin films with x up to 1.1 were obtained by ArF excimer laser chemical vapor deposition (CVD) from NH3/CCl4 or cyanogen azide NCN3 as precursors in the substrate temperature range of 200-650 degrees C. The films are optically transparent and electrically insulating. Depending on the preparation conditions their Tauc gap varies between 1.4 and 3.1 eV. The X-ray photon spectroscopy C 1s and N 1s peaks reveal two bonding states of carbon and nitrogen in the bulk, respectively. When heated to 450 degrees C the CNx films start to decompose into HCN, (CN)(2) and N-2 to completely vanish at 700 degrees C. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:765 / 769
页数:5
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