Key structural and defect chemical aspects of Cd-In-Sn-O transparent conducting oxides

T. O. Mason; D. R. Kammler; B. J. Ingram; G. B. Gonzalez; D. L. Young; T. J. Coutts

doi:10.1016/j.tsf.2003.08.012

Key structural and defect chemical aspects of Cd-In-Sn-O transparent conducting oxides

T. O. Mason^*, D. R. Kammler, B. J. Ingram, G. B. Gonzalez, D. L. Young, T. J. Coutts

^*Corresponding author for this work

Materials Science and Engineering

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

17 Scopus citations

Abstract

The equilibrium phase diagram (1175 °C in air), solubility ranges and room temperature physical properties (electrical, optical) were established for the various n-type transparent conductors in the CdO-In₂O ₃-SnO₂ system. Extended solubility ranges were found to exist at constant Cd/Sn ratio for the bixbyite, spinel and orthorhombic perovskite phases. This is attributed to the isovalent and nearly size-matched nature of the co-substitution. Still larger solubility ranges were found for metastably-processed thin films. Co-doped bixyite and spinel phases were found to be inherently off-stoichiometric with respect to cation composition, leading to self-doped n-type character, in bulk and films. A correlation was found between optimized conductivity in the various phases and the density of octahedral Cd, In and/or Sn species in their crystal structures.

Original language	English (US)
Pages (from-to)	186-192
Number of pages	7
Journal	Thin Solid Films
Volume	445
Issue number	2
DOIs	https://doi.org/10.1016/j.tsf.2003.08.012
State	Published - Dec 15 2003
Event	Proceedings of the 3rd International Symposium on Transparent Oxide - Tokyo, Japan Duration: Apr 10 2003 → Apr 11 2003

Keywords

Bixbyite
Cd-In-Sn-O system
Perovskite
Spinel
Transparent conducting oxide (TCO)

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1016/j.tsf.2003.08.012

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title = "Key structural and defect chemical aspects of Cd-In-Sn-O transparent conducting oxides",

abstract = "The equilibrium phase diagram (1175 °C in air), solubility ranges and room temperature physical properties (electrical, optical) were established for the various n-type transparent conductors in the CdO-In2O 3-SnO2 system. Extended solubility ranges were found to exist at constant Cd/Sn ratio for the bixbyite, spinel and orthorhombic perovskite phases. This is attributed to the isovalent and nearly size-matched nature of the co-substitution. Still larger solubility ranges were found for metastably-processed thin films. Co-doped bixyite and spinel phases were found to be inherently off-stoichiometric with respect to cation composition, leading to self-doped n-type character, in bulk and films. A correlation was found between optimized conductivity in the various phases and the density of octahedral Cd, In and/or Sn species in their crystal structures.",

keywords = "Bixbyite, Cd-In-Sn-O system, Perovskite, Spinel, Transparent conducting oxide (TCO)",

author = "Mason, {T. O.} and Kammler, {D. R.} and Ingram, {B. J.} and Gonzalez, {G. B.} and Young, {D. L.} and Coutts, {T. J.}",

note = "Funding Information: This work was supported in part by the MRSEC program of the National Science Foundation (grant no. DMR-0076097) through the Materials Research Center of Northwestern University and in part by the Department of Energy (grant no. DE-FG02-84ER45097) through the National Renewable Energy Laboratory (subcontract AAD-9-18668-05). D.R. Kammler acknowledges the support of an NSF graduate fellowship and B.J. Ingram acknowledges the support of a NDSEG fellowship.; Proceedings of the 3rd International Symposium on Transparent Oxide ; Conference date: 10-04-2003 Through 11-04-2003",

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doi = "10.1016/j.tsf.2003.08.012",

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pages = "186--192",

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T1 - Key structural and defect chemical aspects of Cd-In-Sn-O transparent conducting oxides

AU - Mason, T. O.

AU - Kammler, D. R.

AU - Ingram, B. J.

AU - Gonzalez, G. B.

AU - Young, D. L.

AU - Coutts, T. J.

N1 - Funding Information: This work was supported in part by the MRSEC program of the National Science Foundation (grant no. DMR-0076097) through the Materials Research Center of Northwestern University and in part by the Department of Energy (grant no. DE-FG02-84ER45097) through the National Renewable Energy Laboratory (subcontract AAD-9-18668-05). D.R. Kammler acknowledges the support of an NSF graduate fellowship and B.J. Ingram acknowledges the support of a NDSEG fellowship.

PY - 2003/12/15

Y1 - 2003/12/15

N2 - The equilibrium phase diagram (1175 °C in air), solubility ranges and room temperature physical properties (electrical, optical) were established for the various n-type transparent conductors in the CdO-In2O 3-SnO2 system. Extended solubility ranges were found to exist at constant Cd/Sn ratio for the bixbyite, spinel and orthorhombic perovskite phases. This is attributed to the isovalent and nearly size-matched nature of the co-substitution. Still larger solubility ranges were found for metastably-processed thin films. Co-doped bixyite and spinel phases were found to be inherently off-stoichiometric with respect to cation composition, leading to self-doped n-type character, in bulk and films. A correlation was found between optimized conductivity in the various phases and the density of octahedral Cd, In and/or Sn species in their crystal structures.

AB - The equilibrium phase diagram (1175 °C in air), solubility ranges and room temperature physical properties (electrical, optical) were established for the various n-type transparent conductors in the CdO-In2O 3-SnO2 system. Extended solubility ranges were found to exist at constant Cd/Sn ratio for the bixbyite, spinel and orthorhombic perovskite phases. This is attributed to the isovalent and nearly size-matched nature of the co-substitution. Still larger solubility ranges were found for metastably-processed thin films. Co-doped bixyite and spinel phases were found to be inherently off-stoichiometric with respect to cation composition, leading to self-doped n-type character, in bulk and films. A correlation was found between optimized conductivity in the various phases and the density of octahedral Cd, In and/or Sn species in their crystal structures.

KW - Bixbyite

KW - Cd-In-Sn-O system

KW - Perovskite

KW - Spinel

KW - Transparent conducting oxide (TCO)

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JO - Thin Solid Films

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T2 - Proceedings of the 3rd International Symposium on Transparent Oxide

Y2 - 10 April 2003 through 11 April 2003

ER -

Key structural and defect chemical aspects of Cd-In-Sn-O transparent conducting oxides

Abstract

Keywords

ASJC Scopus subject areas

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