Photo-assisted metal-organic chemical vapor deposition of CaCu3Ti4O12 (CCTO) thin films

被引:10
作者
Gupta, N. [1 ]
McMillen, C. [2 ]
机构
[1] Clemson Univ, Holcombe Dept Elect & Comp Engn, Clemson, SC 29634 USA
[2] Clemson Univ, Dept Chem, Clemson, SC 29634 USA
关键词
Photo-assisted MOCVD; Calcium copper titanate; Thin film; Dielectric; DIELECTRIC-PROPERTIES; TECHNOLOGY; CONSTANT;
D O I
10.1016/j.mssp.2013.03.013
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Calcium copper titanate (CaCu3Ti4O12) or CCTO is one of the most researched giant dielectric constant materials in recent years. In the present work, incoherent light source based photo-assisted metal-organic chemical vapor deposition (MOCVD) has been used to prepare CCTO thin films on Si/SiO2 substrates. Key to this unique processing technique is the use of UV radiation as an additional source of energy in conjunction to the thermal energy. The given Photo-assisted MOCVD processing resulted in polycrystalline CCTO growth on a SiO2 surface. Powder X-ray diffraction and scanning electron microscopy were performed to analyze structural and compositional properties of the CCTO thin film. Ellipsometric measurements indicated a refractive index of 3.03 for the CCTO thin film. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1297 / 1302
页数:6
相关论文
共 27 条
[1]   Grain-boundary and subgrain-boundary effects on the dielectric properties of CaCu3Ti4O12 ceramics [J].
Cao, Guanghan ;
Feng, Lixin ;
Wang, Cao .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2007, 40 (09) :2899-2905
[2]   A study of rapid photothermal annealing of sputtered lead lanthanum zirconia titanate thin films [J].
Chen, Y ;
Singh, R ;
Li, G ;
Haertling, GH .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1998, 145 (12) :4317-4322
[3]   Deposition of tantalum oxide films by dual spectral source assisted metalorganic chemical vapor deposition (MOCVD) [J].
Chen, Y ;
Singh, R ;
Narayan, J .
JOURNAL OF ELECTRONIC MATERIALS, 1997, 26 (04) :350-354
[4]   The effect Of SiO2 barrier layer on the dielectric properties of CaCu3Ti4O12 films [J].
Fang, L ;
Shen, MR ;
Yang, J ;
Li, ZY .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2005, 38 (23) :4236-4240
[5]   Comment on the origin(s) of the giant permittivity effect in CaCu3Ti4O12 single crystals and ceramics [J].
Ferrarelli, Matthew C. ;
Sinclair, Derek C. ;
West, Anthony R. ;
Dabkowska, Hanna A. ;
Dabkowski, Antoni ;
Luke, Graeme M. .
JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (33) :5916-5919
[6]   Perovskite CaCu3Ti4O12 thin films for capacitive applications: From the growth to the nanoscopic imaging of the permittivity [J].
Fiorenza, P. ;
Lo Nigro, R. ;
Sciuto, A. ;
Delugas, P. ;
Raineri, V. ;
Toro, R. G. ;
Catalano, M. R. ;
Malandrino, G. .
JOURNAL OF APPLIED PHYSICS, 2009, 105 (06)
[7]   Synthesis of CaCu3Ti4O12 ceramic via a sol-gel method [J].
Jin, Shuhua ;
Xia, Haiping ;
Zhang, Yuepin ;
Guo, Juping ;
Xu, Jun .
MATERIALS LETTERS, 2007, 61 (06) :1404-1407
[8]   Deposition and characterization of strontium hexa ferrite (SrFe12O19) by PLD technique [J].
Khaleeq-ur-Rahman, M. ;
Bhatti, K. A. ;
Rafique, M. S. ;
Latif, A. ;
Fou-uz-Zia, Sultana .
OPTICS AND LASER TECHNOLOGY, 2013, 47 :361-365
[9]   Study on optical and dielectric properties of CaCu3Ti4O12 by first-principles calculation [J].
Li, Guo-Ling ;
Yin, Zhen ;
Zhang, Ming-Sheng .
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2008, 150 (03) :163-167
[10]   A novel approach to synthesizing calcium copper titanate thin films with giant dielectric constants [J].
Lo Nigro, R ;
Toro, RG ;
Malandrino, G ;
Bettinelli, M ;
Speghini, A ;
Fragalà, IL .
ADVANCED MATERIALS, 2004, 16 (11) :891-895