Pulsed laser deposition of conducting porous La-Sr-Co-O films

被引：51

作者：

Chen, X ^{[1
]}

Wu, NJ

Ritums, DL

Ignatiev, A

机构：

[1] Univ Houston, Ctr Space Vacuum Epitaxy, Houston, TX 77204 USA

[2] Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA

来源：

THIN SOLID FILMS | 1999年 / 342卷 / 1-2期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

solid oxide fuel cell; oxides; cathodes; laser ablation;

D O I：

10.1016/S0040-6090(98)01347-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

La0.5Sr0.5CoO3-delta (LSCO) films for use in solid oxide fuel cells (SOFC) have been deposited on yttria stabilized zirconia (YSZ)(100) substrates by pulsed laser deposition (PLD). Both epitaxial and porous-polycrystalline films were fabricated. The porous films were formed by deposition at room temperature followed by anneal at from 450-750 degrees C to increase porosity. Resistivity measurements have shown that the porous LSCO films annealed at 550 degrees C yielded the lowest resistivity of 10(-2) Omega cm. The epitaxial LSCO films were deposited on YSZ(100) in the temperature range of 450 to 750 degrees C, and showed (110) preferred orientation. The electrical resistivity of the epitaxial LSCO films is 10(-3) Omega.cm for films deposited at 550 degrees C. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：61 / 66

页数：6

共 8 条

[1] Pulsed laser deposition of novel materials for thin film solid oxide fuel cell applications: Ce0.9Gd0.1O1.95, La0.7Sr0.3CoOy and La0.7Sr0.3Co0.2Fe0.8Oy [J].

Coccia, LG ;

Tyrrell, GC ;

Kilner, JA ;

Waller, D ;

Chater, RJ ;

Boyd, IW .

APPLIED SURFACE SCIENCE, 1996, 96-8 :795-801

[2] PREPARATION OF PORE-FREE DISK OF LA(1-X)SR(X)COO3 MIXED CONDUCTOR AND ITS OXYGEN PERMEABILITY [J].

ITOH, N ;

KATO, T ;

UCHIDA, K ;

HARAYA, K .

JOURNAL OF MEMBRANE SCIENCE, 1994, 92 (03) :239-246

[3] PREPARATION OF POROUS SILICON FILMS BY LASER-ABLATION [J].

LAIHO, R ;

PAVLOV, A .

THIN SOLID FILMS, 1995, 255 (1-2) :9-11

[4] CERAMIC FUEL-CELLS [J].

MINH, NQ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1993, 76 (03) :563-588

[5] ELECTRICAL-CONDUCTIVITY AND SEEBECK COEFFICIENT OF NONSTOICHIOMETRIC LA1-XSRXCOO3-DELTA [J].

MIZUSAKI, J ;

TABUCHI, J ;

MATSUURA, T ;

YAMAUCHI, S ;

FUEKI, K .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1989, 136 (07) :2082-2088

[6] CRYSTAL-STRUCTURE, ELECTRICAL AND MAGNETIC-PROPERTIES OF LA1-XSRXCOO3-Y [J].

PETROV, AN ;

KONONCHUK, OF ;

ANDREEV, AV ;

CHEREPANOV, VA ;

KOFSTAD, P .

SOLID STATE IONICS, 1995, 80 (3-4) :189-199

[7]

SMITH D, 1995, THIN FILM DEPOSITION, pCH5

[8] Effect of SiO2 buffer layers on the structure of SrTiO3 films grown on silicon by pulsed laser deposition [J].

Tejedor, P ;

Fuenzalida, VM ;

Briones, F .

JOURNAL OF APPLIED PHYSICS, 1996, 80 (05) :2799-2804

← 1 →