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

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2017-06
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
Advanced Electronic Materials
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.
Description
| openaire: EC/FP7/339478/EU//LAYERENG-HYBMAT
Keywords
Inorganic-organic hybrids, Oxides, Textiles, Thermoelectrics, Thin films
Other note
Citation
Karttunen , A J , Sarnes , L , Townsend , R , Mikkonen , J & Karppinen , M 2017 , ' Flexible Thermoelectric ZnO-Organic Superlattices on Cotton Textile Substrates by ALD/MLD ' , Advanced Electronic Materials , vol. 3 , no. 6 , 1600459 . https://doi.org/10.1002/aelm.201600459