Crystallization-Induced Uniform Nanodot Formation of Titanium Dioxide Films

We propose a simple technique to fabricate a uniform nanodot array of titanium dioxide via two-dimensional shrinkage in the amorphous-to-crystalline (anatase) transformation during calcination of a precursor film. Increasing the calcination temperature from 400 °C to 600 °C enhances the crystal size...

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Veröffentlicht in:	Bulletin of the Chemical Society of Japan 2022-02, Vol.95 (2), p.216-220
Hauptverfasser:	Hara, Mitsuo, Oguri, Ryota, Sarkar, Shingo, Nagano, Shusaku, Seki, Takahiro
Format:	Artikel
Sprache:	eng
Schlagworte:	Anatase Arrays Block copolymers Crystal structure Crystallinity Crystallization Crystals Diameters Liquid crystals Precursors Roasting Titanium Titanium dioxide
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creator	Hara, Mitsuo Oguri, Ryota Sarkar, Shingo Nagano, Shusaku Seki, Takahiro
description	We propose a simple technique to fabricate a uniform nanodot array of titanium dioxide via two-dimensional shrinkage in the amorphous-to-crystalline (anatase) transformation during calcination of a precursor film. Increasing the calcination temperature from 400 °C to 600 °C enhances the crystal size diameter from ca. 10 to 20 nm, while mixing the precursor film with a thermotropic liquid crystalline amphiphilic block copolymer results in dot arrays with more uniform particle size.
doi_str_mv	10.1246/bcsj.20210391
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source	Oxford University Press Journals All Titles (1996-Current)
subjects	Anatase Arrays Block copolymers Crystal structure Crystallinity Crystallization Crystals Diameters Liquid crystals Precursors Roasting Titanium Titanium dioxide
title	Crystallization-Induced Uniform Nanodot Formation of Titanium Dioxide Films
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