TIME-DEPENDENT DIELECTRIC-BREAKDOWN IN BATIO3 THIN-FILMS

被引：21

作者：

DESU, SB

YOO, IK

机构：

[1] Department of Materials Science and Engineering, College of Engineering, Virainia Polytechnic Institute and State University, Blacksburg, Virginia

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1993年 / 140卷 / 09期

关键词：

D O I：

10.1149/1.2220893

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrical degradation followed by breakdown was studied for BaTiO3 thin films. A field-assisted thermal breakdown was observed which is related to Poole-Frenkel emission. A semiquantitative electrical degradation/breakdown model is proposed on the basis of Poole-Frenkel emission and oxygen vacancy behavior during degradation. It is suggested that accumulation of oxygen vacancies at the cathode and acceptors at the anode forms a forward p-n junction which increases current leading to resultant breakdown.

引用

页码：L133 / L135

页数：3

共 13 条

[1]

Baiatu T., 1988, THESIS U KARLSRUHE

[2] INTERFACIAL SEGREGATION IN PEROVSKITES .3. MICROSTRUCTURE AND ELECTRICAL-PROPERTIES [J].

DESU, SB ;

PAYNE, DA .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1990, 73 (11) :3407-3415

[3]

DESU SB, 1990, MATER RES SOC SYMP P, V200, P199, DOI 10.1557/PROC-200-199

[4] NONSTOICHIOMETRIC DISORDER IN SINGLE-CRYSTALLINE BATIO3 AT ELEVATED-TEMPERATURES [J].

EROR, NG ;

SMYTH, DM .

JOURNAL OF SOLID STATE CHEMISTRY, 1978, 24 (3-4) :235-244

[5]

HARMER MP, 1984, 4TH P INT C REL MAIN, P132

[6]

LEE HY, 1986, IEEE T COMPON HYBR, V9, P469

[7] CONDUCTIVITY INJECTION AND EXTRACTION IN POLYCRYSTALLINE BARIUM TITANATE [J].

LEHOVEC, K ;

SHIRN, GA .

JOURNAL OF APPLIED PHYSICS, 1962, 33 (06) :2036-&

[8] A MODEL OF DC LEAKAGE IN CERAMIC CAPACITORS [J].

LOH, E .

JOURNAL OF APPLIED PHYSICS, 1982, 53 (09) :6229-6235

[9]

Neumann H., 1986, Ferroelectrics, V69, P179, DOI 10.1080/00150198608008191

[10]

PAYNE DA, 1968, 6TH P ANN REL PHYS S, P257

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