Octadecyltriethoxysilane Surface Modification of Zinc Oxide

Cary G. Allen; Darick J. Baker; Thomas E. Furtak; Reuben T. Collins; Matthew S. White; Dane T. Gillaspie; Dana C. Olson; David S. Ginley

doi:10.1557/proc-1091-aa05-78

Octadecyltriethoxysilane Surface Modification of Zinc Oxide

Cary G. Allen, Darick J. Baker, Thomas E. Furtak, Reuben T. Collins, Matthew S. White, Dane T. Gillaspie, Dana C. Olson, David S. Ginley

Materials, Chemical, and Computational Science

Research output: Contribution to conference › Paper › peer-review

Abstract

Zinc Oxide (ZnO) is actively investigated for hybrid organic inorganic device applications. The interface greatly influences the electronic properties of these devices. Molecular surface modification of ZnO is being investigated for its potential to control the alignment of energy levels, charge transfer, as well as, interfacial chemical characteristics that influence device fabrication. In this study, octadecyltriethoxysilane (OTES) treatments of thin film ZnO produced by sol-gel decomposition were explored. The ZnO films were hydroxylated and then modified using OTES in solution. The condensation reaction of the OTES at the surface was promoted by the addition of a protoamine catalyst. Contact angle and infrared spectroscopy studies confirmed the surface modification and indicated that the coverage of the OTES was submonolayer. The modified ZnO films were reproducible and stable for long periods. The effects of the modification on subsequently spin-cast poly[3-hexylthiophene](P3HT) and on hybrid ZnO/P3HT organic solar cell performance are discussed.

Original language	American English
Pages	77-82
Number of pages	6
DOIs	https://doi.org/10.1557/proc-1091-aa05-78 https://doi.org/10.1557/PROC-1091-AA05-78
State	Published - 2008
Event	2008 MRS Spring Meeting - San Francisco, CA, United States Duration: 24 Mar 2008 → 28 Mar 2008

Conference

Conference	2008 MRS Spring Meeting
Country/Territory	United States
City	San Francisco, CA
Period	24/03/08 → 28/03/08

NREL Publication Number

NREL/CP-520-43519

Other Report Number

Paper No. 1091-AA05-78

Keywords

charge transfer
conducting metal oxides
ZnO

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title = "Octadecyltriethoxysilane Surface Modification of Zinc Oxide",

abstract = "Zinc Oxide (ZnO) is actively investigated for hybrid organic inorganic device applications. The interface greatly influences the electronic properties of these devices. Molecular surface modification of ZnO is being investigated for its potential to control the alignment of energy levels, charge transfer, as well as, interfacial chemical characteristics that influence device fabrication. In this study, octadecyltriethoxysilane (OTES) treatments of thin film ZnO produced by sol-gel decomposition were explored. The ZnO films were hydroxylated and then modified using OTES in solution. The condensation reaction of the OTES at the surface was promoted by the addition of a protoamine catalyst. Contact angle and infrared spectroscopy studies confirmed the surface modification and indicated that the coverage of the OTES was submonolayer. The modified ZnO films were reproducible and stable for long periods. The effects of the modification on subsequently spin-cast poly[3-hexylthiophene](P3HT) and on hybrid ZnO/P3HT organic solar cell performance are discussed.",

keywords = "charge transfer, conducting metal oxides, ZnO",

author = "Allen, {Cary G.} and Baker, {Darick J.} and Furtak, {Thomas E.} and Collins, {Reuben T.} and White, {Matthew S.} and Gillaspie, {Dane T.} and Olson, {Dana C.} and Ginley, {David S.}",

year = "2008",

doi = "10.1557/proc-1091-aa05-78",

language = "American English",

pages = "77--82",

note = "2008 MRS Spring Meeting ; Conference date: 24-03-2008 Through 28-03-2008",

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AU - Allen, Cary G.

AU - Baker, Darick J.

AU - Furtak, Thomas E.

AU - Collins, Reuben T.

AU - White, Matthew S.

AU - Gillaspie, Dane T.

AU - Olson, Dana C.

AU - Ginley, David S.

PY - 2008

Y1 - 2008

N2 - Zinc Oxide (ZnO) is actively investigated for hybrid organic inorganic device applications. The interface greatly influences the electronic properties of these devices. Molecular surface modification of ZnO is being investigated for its potential to control the alignment of energy levels, charge transfer, as well as, interfacial chemical characteristics that influence device fabrication. In this study, octadecyltriethoxysilane (OTES) treatments of thin film ZnO produced by sol-gel decomposition were explored. The ZnO films were hydroxylated and then modified using OTES in solution. The condensation reaction of the OTES at the surface was promoted by the addition of a protoamine catalyst. Contact angle and infrared spectroscopy studies confirmed the surface modification and indicated that the coverage of the OTES was submonolayer. The modified ZnO films were reproducible and stable for long periods. The effects of the modification on subsequently spin-cast poly[3-hexylthiophene](P3HT) and on hybrid ZnO/P3HT organic solar cell performance are discussed.

AB - Zinc Oxide (ZnO) is actively investigated for hybrid organic inorganic device applications. The interface greatly influences the electronic properties of these devices. Molecular surface modification of ZnO is being investigated for its potential to control the alignment of energy levels, charge transfer, as well as, interfacial chemical characteristics that influence device fabrication. In this study, octadecyltriethoxysilane (OTES) treatments of thin film ZnO produced by sol-gel decomposition were explored. The ZnO films were hydroxylated and then modified using OTES in solution. The condensation reaction of the OTES at the surface was promoted by the addition of a protoamine catalyst. Contact angle and infrared spectroscopy studies confirmed the surface modification and indicated that the coverage of the OTES was submonolayer. The modified ZnO films were reproducible and stable for long periods. The effects of the modification on subsequently spin-cast poly[3-hexylthiophene](P3HT) and on hybrid ZnO/P3HT organic solar cell performance are discussed.

KW - charge transfer

KW - conducting metal oxides

KW - ZnO

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DO - 10.1557/proc-1091-aa05-78

M3 - Paper

AN - SCOPUS:70350266552

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EP - 82

T2 - 2008 MRS Spring Meeting

Y2 - 24 March 2008 through 28 March 2008

ER -

Octadecyltriethoxysilane Surface Modification of Zinc Oxide

Abstract

Conference

NREL Publication Number

Other Report Number

Keywords

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