@article {Wu:2012:1533-4880:1434,
	author = "Wu, Jyh Ming",
	title = "Tin-Doped Rutile Titanium Dioxide Nanowires: Luminescence, Gas Sensor, and Field Emission Properties",
	journal = "Journal of Nanoscience and Nanotechnology",
	volume = "12",
	number = "2",
	year = "2012",
	abstract = "Sn-doped rutile TiO<SUB>2</SUB> nanowires were synthesized by a thermal reactive evaporation route. Field emission scanning electron microscopy (FESEM) imaging reveals that the Sn-doped TiO<SUB>2</SUB> nanowires exhibited diameters of 80-150 nm and 2-3 microns in length. High-resolution transmission electron microscopy (HRTEM) imaging makes it possible to observe that Sn-doped TiO<SUB>2</SUB> nanowires show a certain lattices fringe of &#8764;0.32 nm, which demonstrates that the nanowires are single crystalline with rutile structure and grow along the [110] axis. Cathodoluminescence (CL) reflected that on the surface of Sn-doped TiO<SUB>2</SUB> nanowires, many oxygen vacancies and defect states were formed during the crystal growth. These defect states raised a broad emission peak around the red-orange band. The ethanol sensing properties of Sn-doped rutile TiO<SUB>2</SUB> nanowires at a temperature of 190 &#176;C for the ethanol concentrations of 50, 100, 150, 200, 400, 500, and 600 ppm, correspond to the sensor' sensitivity of 7, 12, 18, 19, 23, and 26%, respectively. The sensitivity increased with an increase in the ethanol concentration. As-synthesized TiO<SUB>2</SUB> nanowires revealed a turn-on field, &#8764;5.1 V/<I>&#956;</I>m, at a current density of 1 <I>&#956;</I>Acm<SUP>&#8722;2</SUP>.",
	pages = "1434-1439",
	url = "http://www.ingentaconnect.com/content/asp/jnn/2012/00000012/00000002/art00110",
	doi = "doi:10.1166/jnn.2012.4659",
	keyword = "SN-DOPED TIO2, LUMINESCENCE, FIELD EMISSION, GAS SENSOR, THERMAL EVAPORATION"
}