Flexible Thermoelectric ZnO-Organic Superlattices on Cotton Textile Substrates by ALD/MLD

Antti J. Karttunen; Liisa Sarnes; Riikka Townsend; Jussi Mikkonen; Maarit Karppinen

doi:10.1002/aelm.201600459

Flexible Thermoelectric ZnO-Organic Superlattices on Cotton Textile Substrates by ALD/MLD

Antti J. Karttunen^*, Liisa Sarnes, Riikka Townsend, Jussi Mikkonen, Maarit Karppinen

^*Corresponding author for this work

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

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Abstract

The thermoelectric properties of both pristine ZnO and ZnO-organic superlattice thin films deposited on a cotton textile are investigated. The thin films are fabricated by atomic layer deposition/molecular layer deposition, using hydroquinone as the organic precursor for the superlattices. The resulting thin-film coatings are crystalline, in particular when deposited on a textile substrate with a thin predeposited Al₂O₃ seed layer. The thermoelectric properties of the ZnO and ZnO-organic superlattice coatings are comparable to those for thin films deposited on conventional inorganic substrates; Al doping can be employed to further improve the thermoelectric properties. The ZnO-organic superlattice thin films moreover show enhanced resistance to mechanical strain. Due to the higher flexibility and lower thermal conductivity in comparison to pristine ZnO thin films, the ZnO-organic superlattice thin films are a possible material platform for flexible thermoelectrics that can be integrated in textiles and applied in wearable electronics.

Original language	English
Article number	1600459
Number of pages	7
Journal	Advanced Electronic Materials
Volume	3
Issue number	6
DOIs	https://doi.org/10.1002/aelm.201600459
Publication status	Published - Jun 2017
MoE publication type	A1 Journal article-refereed

Keywords

Inorganic-organic hybrids
Oxides
Textiles
Thermoelectrics
Thin films

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10.1002/aelm.201600459

ERC-29-acceptedAccepted author manuscript, 3.58 MBLicence: Unspecified

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title = "Flexible Thermoelectric ZnO-Organic Superlattices on Cotton Textile Substrates by ALD/MLD",

abstract = "The thermoelectric properties of both pristine ZnO and ZnO-organic superlattice thin films deposited on a cotton textile are investigated. The thin films are fabricated by atomic layer deposition/molecular layer deposition, using hydroquinone as the organic precursor for the superlattices. The resulting thin-film coatings are crystalline, in particular when deposited on a textile substrate with a thin predeposited Al2O3 seed layer. The thermoelectric properties of the ZnO and ZnO-organic superlattice coatings are comparable to those for thin films deposited on conventional inorganic substrates; Al doping can be employed to further improve the thermoelectric properties. The ZnO-organic superlattice thin films moreover show enhanced resistance to mechanical strain. Due to the higher flexibility and lower thermal conductivity in comparison to pristine ZnO thin films, the ZnO-organic superlattice thin films are a possible material platform for flexible thermoelectrics that can be integrated in textiles and applied in wearable electronics.",

keywords = "Inorganic-organic hybrids, Oxides, Textiles, Thermoelectrics, Thin films",

author = "Karttunen, {Antti J.} and Liisa Sarnes and Riikka Townsend and Jussi Mikkonen and Maarit Karppinen",

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AU - Karttunen, Antti J.

AU - Sarnes, Liisa

AU - Townsend, Riikka

AU - Mikkonen, Jussi

AU - Karppinen, Maarit

N1 - | openaire: EC/FP7/339478/EU//LAYERENG-HYBMAT

PY - 2017/6

Y1 - 2017/6

N2 - The thermoelectric properties of both pristine ZnO and ZnO-organic superlattice thin films deposited on a cotton textile are investigated. The thin films are fabricated by atomic layer deposition/molecular layer deposition, using hydroquinone as the organic precursor for the superlattices. The resulting thin-film coatings are crystalline, in particular when deposited on a textile substrate with a thin predeposited Al2O3 seed layer. The thermoelectric properties of the ZnO and ZnO-organic superlattice coatings are comparable to those for thin films deposited on conventional inorganic substrates; Al doping can be employed to further improve the thermoelectric properties. The ZnO-organic superlattice thin films moreover show enhanced resistance to mechanical strain. Due to the higher flexibility and lower thermal conductivity in comparison to pristine ZnO thin films, the ZnO-organic superlattice thin films are a possible material platform for flexible thermoelectrics that can be integrated in textiles and applied in wearable electronics.

AB - The thermoelectric properties of both pristine ZnO and ZnO-organic superlattice thin films deposited on a cotton textile are investigated. The thin films are fabricated by atomic layer deposition/molecular layer deposition, using hydroquinone as the organic precursor for the superlattices. The resulting thin-film coatings are crystalline, in particular when deposited on a textile substrate with a thin predeposited Al2O3 seed layer. The thermoelectric properties of the ZnO and ZnO-organic superlattice coatings are comparable to those for thin films deposited on conventional inorganic substrates; Al doping can be employed to further improve the thermoelectric properties. The ZnO-organic superlattice thin films moreover show enhanced resistance to mechanical strain. Due to the higher flexibility and lower thermal conductivity in comparison to pristine ZnO thin films, the ZnO-organic superlattice thin films are a possible material platform for flexible thermoelectrics that can be integrated in textiles and applied in wearable electronics.

KW - Inorganic-organic hybrids

KW - Oxides

KW - Textiles

KW - Thermoelectrics

KW - Thin films

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Flexible Thermoelectric ZnO-Organic Superlattices on Cotton Textile Substrates by ALD/MLD

Abstract

Keywords

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CloseLoop: Closing the Loop for High-added-value Materials

Molecular-Layer-Engineered Inorganic-Organic Hybrid Materials

Raw Materials Research Infrastructure

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Flexible Thermoelectric ZnO-Organic Superlattices on Cotton Textile Substrates by ALD/MLD

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

CloseLoop: Closing the Loop for High-added-value Materials

Molecular-Layer-Engineered Inorganic-Organic Hybrid Materials

Equipment

Raw Materials Research Infrastructure

Cite this