Preparation of oxygen ion conducting doped lanthanum gallate thin films on amorphous and single crystal substrates by pulsed laser deposition

Fumiaki Mitsugi; Seiji Kanazawa; Toshikazu Ohkubo; Yukiharu Nomoto; Yusaku Takita; Tatsumi Ishihara

doi:10.1557/proc-796-v1.5

Preparation of oxygen ion conducting doped lanthanum gallate thin films on amorphous and single crystal substrates by pulsed laser deposition

Fumiaki Mitsugi, Seiji Kanazawa, Toshikazu Ohkubo, Yukiharu Nomoto, Yusaku Takita, Tatsumi Ishihara

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

An La_1-xSr_xGa_1-y-zMg_yCo _zO_3-(x-y+z)/2 (LSGMCO) has attracted much attention because it can be useable as an electrolyte of a solid oxide fuel cell due to its high oxide ion conductivity. We prepared LSGMCO thin films on silica glass and LaAlO₃ single crystal substrates by pulsed laser deposition and evaluated their properties. LSGMCO thin films deposited at 800°C were poly-crystal and the deposition pressure affected their surface morphologies. In the case of the LaAlO₃ single crystal substrate, a c-axis oriented LSGMCO thin film was obtained. DC conductivity and complex impedance of LSGMCO thin films were measured in vacuum atmosphere to investigate the effect of the crystal orientation on the oxide ion conductivity. It was revealed that resistance at a grain boundary of films is more dominant compare with the grain interior.

Original language	English
Pages (from-to)	105-110
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	796
DOIs	https://doi.org/10.1557/proc-796-v1.5
Publication status	Published - 2003
Event	Critical Interfacial Issues in Thin-Film Optoelectronic and Energy Conversion Devices - Boston, MA, United States Duration: Dec 1 2003 → Dec 3 2003

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1557/proc-796-v1.5

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title = "Preparation of oxygen ion conducting doped lanthanum gallate thin films on amorphous and single crystal substrates by pulsed laser deposition",

abstract = "An La1-xSrxGa1-y-zMgyCo zO3-(x-y+z)/2 (LSGMCO) has attracted much attention because it can be useable as an electrolyte of a solid oxide fuel cell due to its high oxide ion conductivity. We prepared LSGMCO thin films on silica glass and LaAlO3 single crystal substrates by pulsed laser deposition and evaluated their properties. LSGMCO thin films deposited at 800°C were poly-crystal and the deposition pressure affected their surface morphologies. In the case of the LaAlO3 single crystal substrate, a c-axis oriented LSGMCO thin film was obtained. DC conductivity and complex impedance of LSGMCO thin films were measured in vacuum atmosphere to investigate the effect of the crystal orientation on the oxide ion conductivity. It was revealed that resistance at a grain boundary of films is more dominant compare with the grain interior.",

author = "Fumiaki Mitsugi and Seiji Kanazawa and Toshikazu Ohkubo and Yukiharu Nomoto and Yusaku Takita and Tatsumi Ishihara",

year = "2003",

doi = "10.1557/proc-796-v1.5",

language = "English",

volume = "796",

pages = "105--110",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Critical Interfacial Issues in Thin-Film Optoelectronic and Energy Conversion Devices ; Conference date: 01-12-2003 Through 03-12-2003",

}

TY - JOUR

T1 - Preparation of oxygen ion conducting doped lanthanum gallate thin films on amorphous and single crystal substrates by pulsed laser deposition

AU - Mitsugi, Fumiaki

AU - Kanazawa, Seiji

AU - Ohkubo, Toshikazu

AU - Nomoto, Yukiharu

AU - Takita, Yusaku

AU - Ishihara, Tatsumi

PY - 2003

Y1 - 2003

N2 - An La1-xSrxGa1-y-zMgyCo zO3-(x-y+z)/2 (LSGMCO) has attracted much attention because it can be useable as an electrolyte of a solid oxide fuel cell due to its high oxide ion conductivity. We prepared LSGMCO thin films on silica glass and LaAlO3 single crystal substrates by pulsed laser deposition and evaluated their properties. LSGMCO thin films deposited at 800°C were poly-crystal and the deposition pressure affected their surface morphologies. In the case of the LaAlO3 single crystal substrate, a c-axis oriented LSGMCO thin film was obtained. DC conductivity and complex impedance of LSGMCO thin films were measured in vacuum atmosphere to investigate the effect of the crystal orientation on the oxide ion conductivity. It was revealed that resistance at a grain boundary of films is more dominant compare with the grain interior.

AB - An La1-xSrxGa1-y-zMgyCo zO3-(x-y+z)/2 (LSGMCO) has attracted much attention because it can be useable as an electrolyte of a solid oxide fuel cell due to its high oxide ion conductivity. We prepared LSGMCO thin films on silica glass and LaAlO3 single crystal substrates by pulsed laser deposition and evaluated their properties. LSGMCO thin films deposited at 800°C were poly-crystal and the deposition pressure affected their surface morphologies. In the case of the LaAlO3 single crystal substrate, a c-axis oriented LSGMCO thin film was obtained. DC conductivity and complex impedance of LSGMCO thin films were measured in vacuum atmosphere to investigate the effect of the crystal orientation on the oxide ion conductivity. It was revealed that resistance at a grain boundary of films is more dominant compare with the grain interior.

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U2 - 10.1557/proc-796-v1.5

DO - 10.1557/proc-796-v1.5

M3 - Conference article

AN - SCOPUS:2942724377

SN - 0272-9172

VL - 796

SP - 105

EP - 110

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Critical Interfacial Issues in Thin-Film Optoelectronic and Energy Conversion Devices

Y2 - 1 December 2003 through 3 December 2003

ER -

Preparation of oxygen ion conducting doped lanthanum gallate thin films on amorphous and single crystal substrates by pulsed laser deposition

Abstract

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