Oxygen bombardment effects on average crystallite size of sputter-deposited ZnO films

被引:35
作者
Furuta, Mamoru [1 ,2 ]
Hiramatsu, Takahiro [2 ,3 ]
Matsuda, Tokiyoshi [1 ,2 ]
Li, Chaoyang [1 ,2 ]
Furuta, Hiroshi [1 ,2 ]
Hirao, Takashi [1 ,2 ]
机构
[1] Kochi Univ Technol, Kochi 7828502, Japan
[2] Kochi Ind Promot Ctr, Kochi 7828502, Japan
[3] Kochi Casio Co Ltd, Nanko Ku, Kochi 7830062, Japan
基金
日本科学技术振兴机构;
关键词
amorphous semiconductors; II-VI semiconductors; diffraction and scattering measurements; X-ray diffraction; films and coatings; sputtering; measurement techniques; optical spectroscopy; microstructure; microcrystallinity; special glasses and materials; indium tin oxide and other transparent conductors; X-rays;
D O I
10.1016/j.jnoncrysol.2007.10.024
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Zinc oxide (ZnO) film was deposited on a glass substrate by rf magnetron sputtering with O-2/Ar as working gases. Structural properties of the films were characterized by XRD. Average crystallite size in the films was strongly dependent on both the gas flow ratio of O-2/Ar and rf-power at a constant deposition pressure. During the deposition, energetic species in the plasma were in situ monitored using optical emission spectroscopy. An inverse correlation was observed between the average crystallite size and the emission intensity ratio of I-o*/I-Ar. Bombardment of atomic oxygen to the growing surface played an important role in determining the average crystallite size in the films. The average crystallite size could be controlled by the emission intensity ratio of I-o*/I-Ar. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:1926 / 1931
页数:6
相关论文
共 17 条
[1]   ZnO synthesis by high vacuum plasma-assisted chemical vapor deposition using dimethylzinc and atomic oxygen [J].
Barnes, TM ;
Hand, S ;
Leaf, J ;
Wolden, CA .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2004, 22 (05) :2118-2125
[2]   Transparent ZnO thin-film transistor fabricated by rf magnetron sputtering [J].
Carcia, PF ;
McLean, RS ;
Reilly, MH ;
Nunes, G .
APPLIED PHYSICS LETTERS, 2003, 82 (07) :1117-1119
[3]   OPTICAL-EMISSION SPECTROSCOPY OF REACTIVE PLASMAS - A METHOD FOR CORRELATING EMISSION INTENSITIES TO REACTIVE PARTICLE DENSITY [J].
COBURN, JW ;
CHEN, M .
JOURNAL OF APPLIED PHYSICS, 1980, 51 (06) :3134-3136
[4]   Effects of grid bias on ZnO/α-Al2O3(0001) heteroepitaxy [J].
Doh, SJ ;
Park, SI ;
Cho, TS ;
Je, JH .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 1999, 17 (05) :3003-3007
[5]   Wide-bandgap high-mobility ZnO thin-film transistors produced at room temperature [J].
Fortunato, EMC ;
Barquinha, PMC ;
Pimentel, ACMBG ;
Gonçalves, AMF ;
Marques, AJS ;
Martins, RFP ;
Pereira, LMN .
APPLIED PHYSICS LETTERS, 2004, 85 (13) :2541-2543
[6]   Novel top-gate zinc oxide thin-film transistors (ZnO TFTs) for AMLCDs [J].
Hirao, Takashi ;
Furuta, Mamoru ;
Furuta, Hiroshi ;
Matsuda, Tokiyoshi ;
Hiramatsu, Takahiro ;
Hokari, Hitoshi ;
Yoshida, Motohiko ;
Ishii, Hiromitsu ;
Kakegawa, Masayuki .
JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY, 2007, 15 (01) :17-22
[7]   ZnO-based transparent thin-film transistors [J].
Hoffman, RL ;
Norris, BJ ;
Wager, JF .
APPLIED PHYSICS LETTERS, 2003, 82 (05) :733-735
[8]   Effects of growth conditions on the emission properties of ZnO films prepared on Si(100) by rf magnetron sputtering [J].
Jeong, SH ;
Kim, JK ;
Lee, BT .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2003, 36 (16) :2017-2020
[9]   INFLUENCE OF LOW-ENERGY BOMBARDMENT OF AN RF MAGNETRON SPUTTERING DISCHARGE ON TEXTURE FORMATION AND STRESS IN ZNO FILMS [J].
KALTOFEN, R ;
WEISE, G .
JOURNAL OF NUCLEAR MATERIALS, 1993, 200 (03) :375-379
[10]   ZINC-OXIDE THIN-FILMS PREPARED BY THE ELECTRON-CYCLOTRON-RESONANCE PLASMA SPUTTERING METHOD [J].
MANABE, Y ;
MITSUYU, T .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1990, 29 (02) :334-339