Effect of variation of precursor concentration on structural, microstructural, optical and gas sensing properties of nanocrystalline TiO2 thin films prepared by spray pyrolysis techniques

被引：9

作者：

Patil, Lalchand A. ^{[1
]}

Suryawanshi, Dinesh N. ^{[1
]}

Pathan, Idris G. ^{[1
]}

Patil, Dhanashri G. ^{[1
]}

机构：

[1] Pratap Coll, Dept Phys, Amalner 425401, India

来源：

BULLETIN OF MATERIALS SCIENCE | 2013年 / 36卷 / 07期

关键词：

Spray pyrolysis; nanocrystalline TiO2; electron diffraction pattern; SENSITIZED SOLAR-CELLS; RESISTORS; TITANIA; GROWTH; SENSOR; FABRICATION;

D O I：

10.1007/s12034-013-0597-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The objective of the present paper is to investigate the effect of variation of precursor concentration (0 center dot 01, 0 center dot 02 and 0 center dot 03 M) on the structural, microstructural, optical and gas sensing properties of TiO thin films. Titanium dioxide (TiO) films were prepared from aqueous solution of titanium chloride (TiCl6HO, 99 center dot 9% pure, Merck made, Germany) onto the glass substrates heated at a temperature of 350 A degrees C by the spray pyrolysis technique. Bandgap energy of the films vary from 3.28 to 3.29 eV. X-ray diffraction shows that films to be nanocrystalline with anatase phase having tetragonal crystal structure. The d values calculated from electron diffraction patterns (TEM) were observed to be matching with d values calculated from XRD. Transmission electron microscopy (TEM) reveled that grain sizes were observed to increase (10-29 nm) with an increase in the concentration of precursor solution. The gas sensing performance of the films was tested.

引用

页码：1153 / 1160

页数：8

共 47 条

[1] Highly efficient dye-sensitized solar cells with a titania thin-film electrode composed of a network structure of single-crystal-like TiO2 nanowires made by the "oriented attachment" mechanism [J].