Synthesis of ZnO bicrystals doped with Co or Mn and their electrical properties

被引:44
作者
Ohashi, N
Terada, Y
Ohgaki, T
Tanaka, S
Tsurumi, T
Fukunaga, O
Haneda, H
Tanaka, J
机构
[1] Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Met & Ceram Sci, Meguro Ku, Tokyo 1528552, Japan
[2] Hitachi Ltd, Hitachi Res Lab, Inorgan Mat Gr, Hitachi, Ibaraki 3191292, Japan
[3] Natl Inst Res Inorgan Mat, Tsukuba, Ibaraki 3050044, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 1999年 / 38卷 / 9A期
关键词
zinc oxide; bicrystal; single crystal; varistor; cobalt; manganese;
D O I
10.1143/JJAP.38.5028
中图分类号
O59 [应用物理学];
学科分类号
摘要
Bicrystals of ZnO without intergranular additives were synthesized to elucidate the effect of Co and Mn doping on the varistor properties of ZnO ceramics. Nonlinear current-voltage (I-V) characteristics due to the formation of an interfacial barrier were observed in bicrystals doped with Co or Mn, while the nondoped bicrystals exhibited linear I-V relationship. Since the charge transport properties of bulk ZnO crystals were not changed, it is indicated that the energy dispersion and/or density of the interfacial states were changed by the Co and Mn doping.
引用
收藏
页码:5028 / 5032
页数:5
相关论文
共 20 条
[1]   CARRIER TRANSPORT THROUGH GRAIN-BOUNDARIES IN SEMICONDUCTORS [J].
BLATTER, G ;
GREUTER, F .
PHYSICAL REVIEW B, 1986, 33 (06) :3952-3966
[2]   ELECTRICAL-PROPERTIES OF GRAIN-BOUNDARIES IN POLYCRYSTALLINE COMPOUND SEMICONDUCTORS [J].
GREUTER, F ;
BLATTER, G .
SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1990, 5 (02) :111-137
[3]   ELECTRICAL TRANSPORT PROPERTIES OF ZN DOPED ZNO [J].
HAGEMARK, KI ;
CHACKA, LC .
JOURNAL OF SOLID STATE CHEMISTRY, 1975, 15 (03) :261-270
[4]   ON MORPHOLOGY AND POLARITY OF ZNO CRYSTAL [J].
IWANAGA, H ;
SHIBATA, N .
JAPANESE JOURNAL OF APPLIED PHYSICS, 1967, 6 (03) :415-&
[5]  
MAEDA T, 1989, NIPPON SERAM KYO GAK, V97, P1225, DOI 10.2109/jcersj.97.1225
[6]   NONOHMIC PROPERTIES OF ZINC OXIDE CERAMICS [J].
MATSUOKA, M .
JAPANESE JOURNAL OF APPLIED PHYSICS, 1971, 10 (06) :736-&
[7]   NON-OHMIC PROPERTIES OF ZNO-RARE EARTH METAL OXIDE CO3O4 CERAMICS [J].
MUKAE, K ;
TSUDA, K ;
NAGASAWA, I .
JAPANESE JOURNAL OF APPLIED PHYSICS, 1977, 16 (08) :1361-1368
[8]   THE GROWTH OF LARGE SINGLE CRYSTALS OF ZINC OXIDE [J].
NIELSEN, JW ;
DEARBORN, EF .
JOURNAL OF PHYSICAL CHEMISTRY, 1960, 64 (11) :1762-1763
[9]   Joining of strontium titanate single crystals and their electrical characteristics [J].
Nomura, M ;
Ichinose, N ;
Haneda, H ;
Tanaka, J .
ELECTROCERAMICS IN JAPAN I, 1999, 157-1 :207-212
[10]   Cathodoluminescence spectra of Mn or Co doped ZnO single crystals [J].
Ohashi, N ;
Sekiguchi, T ;
Haneda, H ;
Terada, Y ;
Ohgaki, T ;
Tsurumi, T ;
Tanaka, J ;
Fukunaga, O .
ELECTROCERAMICS IN JAPAN I, 1999, 157-1 :227-233