Patterned transparent zinc oxide films produced by sol-gel embossing

J. Rao; R. J. Winfield; L. H.K. Koh; S. O'Brien; G. M. Crean

doi:10.1002/pssa.200778853

Patterned transparent zinc oxide films produced by sol-gel embossing

J. Rao
, R. J. Winfield
, L. H.K. Koh
, S. O'Brien
, G. M. Crean

University College Cork

Research output: Contribution to journal › Article › peer-review

Abstract

A low cost zinc oxide embossing technique is reported as a method of fabricating structures relevant to a variety of applications. A zinc based sol-gel material was prepared from zinc acetate [Zn(C ₂H ₃O ₂) ₂], monoethanolamine [H ₂NC ₂H ₄OH] and isopropanol. The sol-gel was cast into a polydimethylsiloxane (PDMS) mould a track design, placed in contact with the substrate and dried under vacuum at 70 °C for 3 hours. The formed track pattern was further densified to provide a stable conductor film that retained the embossed shape. An optimum Zn sol-gel content of 0.6 M was identified. The embossed films had a transparency of greater than 83% in the visible region. The optical bandgap energy was evaluated to be 3.306 eV. The influence of ZnO sol-gel film synthesis and embossing parameters on the microstructure, morphology and optical transparency of fabricated structures is described.

Original language	English
Pages (from-to)	1938-1942
Number of pages	5
Journal	Physica Status Solidi (A) Applications and Materials Science
Volume	205
Issue number	8
DOIs	https://doi.org/10.1002/pssa.200778853
Publication status	Published - Aug 2008

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abstract = "A low cost zinc oxide embossing technique is reported as a method of fabricating structures relevant to a variety of applications. A zinc based sol-gel material was prepared from zinc acetate [Zn(C 2H 3O 2) 2], monoethanolamine [H 2NC 2H 4OH] and isopropanol. The sol-gel was cast into a polydimethylsiloxane (PDMS) mould a track design, placed in contact with the substrate and dried under vacuum at 70 °C for 3 hours. The formed track pattern was further densified to provide a stable conductor film that retained the embossed shape. An optimum Zn sol-gel content of 0.6 M was identified. The embossed films had a transparency of greater than 83\% in the visible region. The optical bandgap energy was evaluated to be 3.306 eV. The influence of ZnO sol-gel film synthesis and embossing parameters on the microstructure, morphology and optical transparency of fabricated structures is described.",

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AU - Winfield, R. J.

AU - Koh, L. H.K.

AU - O'Brien, S.

AU - Crean, G. M.

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AB - A low cost zinc oxide embossing technique is reported as a method of fabricating structures relevant to a variety of applications. A zinc based sol-gel material was prepared from zinc acetate [Zn(C 2H 3O 2) 2], monoethanolamine [H 2NC 2H 4OH] and isopropanol. The sol-gel was cast into a polydimethylsiloxane (PDMS) mould a track design, placed in contact with the substrate and dried under vacuum at 70 °C for 3 hours. The formed track pattern was further densified to provide a stable conductor film that retained the embossed shape. An optimum Zn sol-gel content of 0.6 M was identified. The embossed films had a transparency of greater than 83% in the visible region. The optical bandgap energy was evaluated to be 3.306 eV. The influence of ZnO sol-gel film synthesis and embossing parameters on the microstructure, morphology and optical transparency of fabricated structures is described.

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JO - Physica Status Solidi (A) Applications and Materials Science

JF - Physica Status Solidi (A) Applications and Materials Science

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Patterned transparent zinc oxide films produced by sol-gel embossing

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