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 SnO2:Sb Nanocrystals Synthesized using a Nonaqueous Sol-Gel Method

Ist Teil von

• Journal of the American Ceramic Society, 2010-11, Vol.93 (11), p.3862-3866

Ort / Verlag

Malden, USA: Blackwell Publishing Inc

Erscheinungsjahr

2010

Quelle

Wiley Online Library

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 × 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.