Solvothermal synthesis of a highly branched Ta-doped TiO 2

We present a low-temperature, hydrothermal synthesis method for Ta-doped TiO 2 . Here, alkoxide-based precursors are mixed at low temperatures to suppress differential hydrolysis and phase separation. This method ensures homogeneous, molecular mixing of the Ta dopant with the native oxide up to a co...

Full description

Saved in:

Bibliographic Details
Published in:	Journal of materials research Vol. 26; no. 20; pp. 2653 - 2659
Main Authors:	Arab, Shermin, Li, Dongsheng, Kinsinger, Nichola, Zaera, Francisco, Kisailus, David
Format:	Journal Article
Language:	English
Published:	28-10-2011
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	We present a low-temperature, hydrothermal synthesis method for Ta-doped TiO 2 . Here, alkoxide-based precursors are mixed at low temperatures to suppress differential hydrolysis and phase separation. This method ensures homogeneous, molecular mixing of the Ta dopant with the native oxide up to a concentration of ∼2.5 at.%. X-ray diffraction and energy dispersive spectrometer analyses confirm a uniformly doped rutile TiO 2 . Scanning electron microscopy and transmission electron microscopy analyses reveal a highly branched structure. Optoelectronic properties of these structures were investigated using ultraviolet-visible spectroscopy and low-temperature photoluminescence.
ISSN:	0884-2914 2044-5326
DOI:	10.1557/jmr.2011.286