Details

Autor(en) / Beteiligte

• Conti, Tiago G
• Chiquito, Adenilson J
• Da Silva, Rafael O
• Longo, Elson
• Leite, Edson R

Titel

Electrical Properties of Highly Conducting SnO^sub 2^:Sb Nanocrystals Synthesized using a Nonaqueous Sol-Gel Method

Ist Teil von

• Journal of the American Ceramic Society, 2010-11, Vol.93 (11), p.3862

Ort / Verlag

Columbus: Wiley Subscription Services, Inc

Erscheinungsjahr

2010

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• This work describes the synthesis of highly conducting antimony-doped tin oxide (ATO) nanocrystals prepared via a nonaqueous sol-gel route in the size range of 4-6 nm and provides insights into its electrical properties. The antimony composition was varied from 1 to 18 mol% and the lowest resistivity (4.0 x 10^-4Ω-cm) was observed at room temperature in the SnO2:8.8 mol% Sb composition. The samples were evaluated by X-ray diffraction, high-resolution transmission electron microscopy, energy-dispersive X-ray spectroscopy, and scanning electron microscope, and resistivity measurements were taken in the four-probe mode in the temperature range of 13-300 K. The results show highly crystalline nanoparticles in a monodisperse colloidal system, dependence on the shape of ATO nanoparticles as a function of Sb distribution, low resistivity, and semiconductor-metal transition. [PUBLICATION ABSTRACT]