Published October 15, 2010
| Version v1
Journal article
Effect of surface microstructures on photo-induced hydrophilicity of NaNbO3 thin films by sol-gel process
- 1. Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8503 (Japan)
- 2. Technology Research and Development Department, Central Japan Railway Company, 1545-33 Ohyama, Komaki City, Aichi 485-0801 (Japan)
- 3. Kanagawa Academy of Science and Technology, KSP Building West 614, 3-2-1 Sakado, Takatsu-ku, Kawasaki, Kanagawa 213-0012 (Japan)
Description
The photo-induced hydrophilicity of sodium niobate (NaNbO3) films prepared by the sol-gel method was investigated. Although the films annealed at by 700 and 900 deg. C exhibited a more heterogeneous microstructure (average grain size: 30-40 nm, 50-80 nm, respectively) than that for films annealed at 500 deg. C (15-20 nm), the crystallinity and the band gaps of the films were all approximately the same. The films exhibited photo-induced hydrophilicity under UV-B light irradiation. The photo-induced hydrophilic response of the film annealed at 500 deg. C was higher than those of the films annealed at 700 and 900 deg. C. It is proposed that the photo-induced hydrophilicity of NaNbO3 films is affected by the surface microstructure.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.mseb.2010.01.008Additional details
Identifiers
- DOI
- 10.1016/j.mseb.2010.01.008;
- PII
- S0921-5107(10)00011-5;
Publishing Information
- Journal Title
- Materials Science and Engineering. B, Solid-State Materials for Advanced Technology
- Journal Volume
- 173
- Journal Issue
- 1-3
- Journal Page Range
- p. 267-270
- ISSN
- 0921-5107
- CODEN
- MSBTEK
Conference
- Title
- 3. international conference on science and technology of advanced ceramics
- Acronym
- STAC-3
- Dates
- 16-18 Jun 2009
- Place
- Yokohama (Japan)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 43030422
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANNEALING; GRAIN SIZE; IRRADIATION; NIOBATES; SODIUM; SOL-GEL PROCESS; SURFACES; THIN FILMS
- Descriptors DEC
- ALKALI METALS; ELEMENTS; FILMS; HEAT TREATMENTS; METALS; MICROSTRUCTURE; NIOBIUM COMPOUNDS; OXYGEN COMPOUNDS; REFRACTORY METAL COMPOUNDS; SIZE; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.