Self-assembled peptide nanofiber templated ALD growth of TiO2 and ZnO semiconductor nanonetworks

Date
2016
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Source Title
Physica Status Solidi. A : Applications and Materials Science
Print ISSN
1862-6300
Electronic ISSN
1862-6319
Publisher
Wiley - V C H Verlag GmbH & Co. KGaA
Volume
213
Issue
12
Pages
3238 - 3244
Language
English
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Abstract

Here peptide amphiphile (PA) nanofiber network is exploited as a three‐dimensional soft template to construct anatase TiO2 and wurtzite ZnO nanonetworks. Atomic layer deposition (ALD) technique is used to coat the organic nanonetwork template with TiO2and ZnO. ALD method enables uniform and conformal coatings with precisely controlled TiO2 and ZnO thickness. The resulting semiconducting metal oxide nanonetworks are utilized as anodic materials in dye‐sensitized solar cells. Effect of metal oxide layer thickness on device performance is studied. The devices based on thin TiO2 coatings (<10 nm) demonstrate considerable dependence on material thickness, whereas thicker (>17 nm) ZnO‐based devices do not show an explicit correlation.

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