Self-erasing and rewritable wettability patterns on ZnO thin films

Thumbnail Image

Files

1.3460915.pdf (975.71 KB)

Access rights

openAccess
publishedVersion

URL

Journal Title

Journal ISSN

Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.

Authors

Date

2010

Department

Department of Applied Physics
Department of Chemistry

Major/Subject

Mcode

Degree programme

Language

en

Pages

3

Series

Applied Physics Letters, Volume 97, issue 4, pp. 1-3

Abstract

Self-erasing patterns allow a substrate to be patterned multiple times or could store temporary information for secret communications, and are mostly based on photochromic molecules to change the color of the pattern. Herein we demonstrate self-erasing patterns of wettability on thin ZnO films made by atomic layer deposition. Hydrophilic patterns are written using UV light and decay spontaneously, i.e. become hydrophobic, or are erased aided by vacuum conditions or heat. We demonstrate that these patterns can be applied for channels to confine flow of water without physical walls.

Description

Keywords

lasers, photoinduced wetting

Other note

DOI

10.1063/1.3460915

Citation

Kekkonen, V, Hakola, A, Kajava, T, Sahramo, E, Malm, J, Karppinen, M & Ras, R H A 2010, 'Self-erasing and rewritable wettability patterns on ZnO thin films', Applied Physics Letters, vol. 97, no. 4, 044102, pp. 1-3. https://doi.org/10.1063/1.3460915

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-202510087755

Collections

[article-cris] Kemian tekniikan korkeakoulu / CHEM