TY - JOUR
T1 - Calcination effects on the properties of Gallium-doped zinc oxide powders
AU - Du, Shangfeng
AU - Tian, Yajun
AU - Liu, Haidi
AU - Liu, Jian
AU - Chen, Yunfa
PY - 2006/8
Y1 - 2006/8
N2 - Highly conductive Gallium-doped zinc oxide (Zn1-xGa xO) powder was prepared by calcining precursor that was synthesized from ZnSO4 · 7H2O, GaCl3, and NH 4HCO3 by the coprecipitation method. The effects of temperature, heating time, and atmosphere on the calcination process were studied, and we found that these factors are important to control the electrical conductivity, particle size, and agglomeration of Zn1-xGa xO powder. By studying these processing conditions, we found that the optimum one is calcining the precursor in H2 at 540°C for about 1.5 h, and the product has a specific surface area higher than 28 m 2/g and volume resistivity lower than 16.8 Ω · cm. The chemistry details of the doping process were also discussed based on the experimental results.
AB - Highly conductive Gallium-doped zinc oxide (Zn1-xGa xO) powder was prepared by calcining precursor that was synthesized from ZnSO4 · 7H2O, GaCl3, and NH 4HCO3 by the coprecipitation method. The effects of temperature, heating time, and atmosphere on the calcination process were studied, and we found that these factors are important to control the electrical conductivity, particle size, and agglomeration of Zn1-xGa xO powder. By studying these processing conditions, we found that the optimum one is calcining the precursor in H2 at 540°C for about 1.5 h, and the product has a specific surface area higher than 28 m 2/g and volume resistivity lower than 16.8 Ω · cm. The chemistry details of the doping process were also discussed based on the experimental results.
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U2 - 10.1111/j.1551-2916.2006.01093.x
DO - 10.1111/j.1551-2916.2006.01093.x
M3 - Article
AN - SCOPUS:33745936350
VL - 89
SP - 2440
EP - 2443
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
IS - 8
ER -