Structural and thermoelectric properties of Bi2Sr 2Co2 Oy thin films on LaAlO3 (100) and fused silica substrates

Shufang Wang; A. Venimadhav; Shengming Guo; Ke Chen; Qi Li; A. Soukiassian; Darrell G. Schlom; Michael B. Katz; X. Q. Pan; Winnie Wong-Ng; Mark D. Vaudin; X. X. Xi

doi:10.1063/1.3072803

Structural and thermoelectric properties of Bi₂Sr ₂Co₂ Oy thin films on LaAlO₃ (100) and fused silica substrates

Shufang Wang, A. Venimadhav, Shengming Guo, Ke Chen, Qi Li, A. Soukiassian, Darrell G. Schlom, Michael B. Katz, X. Q. Pan, Winnie Wong-Ng, Mark D. Vaudin, X. X. Xi

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Abstract

We have grown Bi₂ Sr₂ Co₂ Oy thin films on LaAlO₃ (100) and fused silica substrates by pulsed laser deposition. The films on LaAlO₃ are c -axis oriented and partially in-plane aligned with multiple domains, while the films on fused silica are preferred c -axis oriented without in-plane alignment. The Seebeck coefficient and resistivity of films on both substrates are comparable to those of single crystals. An oxide p-n heterojunction was formed by depositing Bi₂ Sr₂ Co₂ Oy film on Nb-doped SrTiO₃ single crystal, which showed a rectifying behavior. These thin films and heterostructures may be used for future thermoelectric applications.

Original language	English (US)
Article number	022110
Journal	Applied Physics Letters
Volume	94
Issue number	2
DOIs	https://doi.org/10.1063/1.3072803
State	Published - 2009

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.3072803

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@article{c943af379c4746d1a478bb6c117b64dd,

title = "Structural and thermoelectric properties of Bi2Sr 2Co2 Oy thin films on LaAlO3 (100) and fused silica substrates",

abstract = "We have grown Bi2 Sr2 Co2 Oy thin films on LaAlO3 (100) and fused silica substrates by pulsed laser deposition. The films on LaAlO3 are c -axis oriented and partially in-plane aligned with multiple domains, while the films on fused silica are preferred c -axis oriented without in-plane alignment. The Seebeck coefficient and resistivity of films on both substrates are comparable to those of single crystals. An oxide p-n heterojunction was formed by depositing Bi2 Sr2 Co2 Oy film on Nb-doped SrTiO3 single crystal, which showed a rectifying behavior. These thin films and heterostructures may be used for future thermoelectric applications.",

author = "Shufang Wang and A. Venimadhav and Shengming Guo and Ke Chen and Qi Li and A. Soukiassian and Schlom, {Darrell G.} and Katz, {Michael B.} and Pan, {X. Q.} and Winnie Wong-Ng and Vaudin, {Mark D.} and Xi, {X. X.}",

note = "Funding Information: We thank Professor Terasaki for stimulating discussions that initiated this work. The thermal conductivity of a film was measured in Professor Cahill{\textquoteright}s laboratory at the U. Illinois, for which we acknowledge gratefully. This work was partially supported by DOE under Grant No. DE-FG02-01ER45907 (X.X.X.) and NSF under Grant Nos. DMR-0405502 (Q.L.), DMR-0507146 (D.G.S. and X.X.X.), and DMR-0315633 (X.Q.P.). ",

year = "2009",

doi = "10.1063/1.3072803",

language = "English (US)",

volume = "94",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "2",

}

TY - JOUR

T1 - Structural and thermoelectric properties of Bi2Sr 2Co2 Oy thin films on LaAlO3 (100) and fused silica substrates

AU - Wang, Shufang

AU - Venimadhav, A.

AU - Guo, Shengming

AU - Chen, Ke

AU - Li, Qi

AU - Soukiassian, A.

AU - Schlom, Darrell G.

AU - Katz, Michael B.

AU - Pan, X. Q.

AU - Wong-Ng, Winnie

AU - Vaudin, Mark D.

AU - Xi, X. X.

N1 - Funding Information: We thank Professor Terasaki for stimulating discussions that initiated this work. The thermal conductivity of a film was measured in Professor Cahill’s laboratory at the U. Illinois, for which we acknowledge gratefully. This work was partially supported by DOE under Grant No. DE-FG02-01ER45907 (X.X.X.) and NSF under Grant Nos. DMR-0405502 (Q.L.), DMR-0507146 (D.G.S. and X.X.X.), and DMR-0315633 (X.Q.P.).

PY - 2009

Y1 - 2009

N2 - We have grown Bi2 Sr2 Co2 Oy thin films on LaAlO3 (100) and fused silica substrates by pulsed laser deposition. The films on LaAlO3 are c -axis oriented and partially in-plane aligned with multiple domains, while the films on fused silica are preferred c -axis oriented without in-plane alignment. The Seebeck coefficient and resistivity of films on both substrates are comparable to those of single crystals. An oxide p-n heterojunction was formed by depositing Bi2 Sr2 Co2 Oy film on Nb-doped SrTiO3 single crystal, which showed a rectifying behavior. These thin films and heterostructures may be used for future thermoelectric applications.

AB - We have grown Bi2 Sr2 Co2 Oy thin films on LaAlO3 (100) and fused silica substrates by pulsed laser deposition. The films on LaAlO3 are c -axis oriented and partially in-plane aligned with multiple domains, while the films on fused silica are preferred c -axis oriented without in-plane alignment. The Seebeck coefficient and resistivity of films on both substrates are comparable to those of single crystals. An oxide p-n heterojunction was formed by depositing Bi2 Sr2 Co2 Oy film on Nb-doped SrTiO3 single crystal, which showed a rectifying behavior. These thin films and heterostructures may be used for future thermoelectric applications.

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VL - 94

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JF - Applied Physics Letters

IS - 2

M1 - 022110

ER -

Structural and thermoelectric properties of Bi₂Sr ₂Co₂ Oy thin films on LaAlO₃ (100) and fused silica substrates

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