Improved UV emission of zinc oxide through hyrogen doping in pulse-modulated high-power ICP

被引:8
作者
Ishigaki, T
Ohashi, N
Taguchi, H
Ye, RB
Haneda, H
Ito, S
机构
[1] Natl Inst Mat Sci, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan
[2] Tokyo Univ Sci, Dept Pure & Appl Chem, Noda, Chiba 2788510, Japan
关键词
induction thermal plasma; pulse modulation; zinc oxide; UV emission; hydrogen doping;
D O I
10.1016/j.tsf.2005.08.270
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Pulse-modulated high-power inductively coupled plasma (PM-ICP) as a radical source of high flux density was utilized to improve the UV emission efficiency of ZnO. The irradiation of argon-hydrogen PM-ICP plasma gave the improvement of the UV emission at 380 nm. The relationship between the treatment condition and the emission properties was examined with respect to hydrogen dissolution. When treated in the tail plasma flame with adequate cooling, the specimen showed the intense UV emission. The control of heat flux by mixing nitrogen gas to the hydrogen-containing plasma also had a favorable influence on the UV emission. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:303 / 306
页数:4
相关论文
共 14 条
[1]  
APTANKAR S, 1980, NUMERICAL HEAT TRANS
[2]   Generation of pulse-modulated induction thermal plasma at atmospheric pressure [J].
Ishigaki, T ;
Fan, XB ;
Sakuta, T ;
Banjo, T ;
Shibuya, Y .
APPLIED PHYSICS LETTERS, 1997, 71 (26) :3787-3789
[3]   DISSOLUTION OF DEUTERIUM INTO PROTON CONDUCTOR SRCE0.95YB0.05O3-DELTA [J].
ISHIGAKI, T ;
YAMAUCHI, S ;
KISHIO, K ;
FUEKI, K ;
IWAHARA, H .
SOLID STATE IONICS, 1986, 21 (03) :239-241
[4]   Nonthermal and nonequilibrium effects in high-power pulsed ICP and application to surface modification of materials [J].
Ishigaki, T ;
Okada, N ;
Ohashi, N ;
Haneda, H ;
Sakuta, T .
PURE AND APPLIED CHEMISTRY, 2002, 74 (03) :435-439
[5]   Surface modification of titanium oxide in pulse-modulated induction thermal plasma [J].
Ishigaki, T ;
Haneda, H ;
Okada, N ;
Ito, S .
THIN SOLID FILMS, 2001, 390 (1-2) :20-25
[6]   Pulse-modulated RF thermal plasma for advanced materials processing [J].
Ishigaki, T ;
Sakuta, T .
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 1999, 10 (07) :565-568
[7]   Thermal plasma treatment of titanium carbide powders .2. In-flight formation of carbon-site vacancies and subsequent nitridation in titanium carbide powders during induction plasma treatment [J].
Ishigaki, T ;
Moriyoshi, Y ;
Watanabe, T ;
Kanzawa, A .
JOURNAL OF MATERIALS RESEARCH, 1996, 11 (11) :2811-2824
[8]   Transient response of the radio frequency inductively coupled plasma to a sudden change in power [J].
Mostaghimi, J ;
Paul, KC ;
Sakuta, T .
JOURNAL OF APPLIED PHYSICS, 1998, 83 (04) :1898-1908
[9]   Passivation of active recombination centers in ZnO by hydrogen doping [J].
Ohashi, N ;
Ishigaki, T ;
Okada, N ;
Taguchi, H ;
Sakaguchi, I ;
Hishita, S ;
Sekiguchi, T ;
Haneda, H .
JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) :6386-6392
[10]   Effect of hydrogen doping on ultraviolet emission spectra of various types of ZnO [J].
Ohashi, N ;
Ishigaki, T ;
Okada, N ;
Sekiguchi, T ;
Sakaguchi, I ;
Haneda, H .
APPLIED PHYSICS LETTERS, 2002, 80 (16) :2869-2871