Sb掺杂SnO_2纳米粉体的结晶行为和电学性能

Crystal and Electrical Behaviour of Antimony Doped SnO_2 Nanoparticles

采用非均相成核法制备了 Sb掺杂的 Sn O2 (ATO)纳米粉体 .研究了粉体电学性能、粒径、晶胞参数随 Sb掺杂量的变化关系及粉体电学性能、粒径随煅烧温度的变化关系 .应用非晶物质晶化晶核生长速率方程计算了晶粒生长活化能 .结果表明 ,晶粒生长分为 2个阶段 ,其活化能分别为 2 1 .94和 4.5 2 k J/mol.

Antimony doped tin dioxide(ATO) nanoparticles prepared by heterogeneous precipitation have been investigated as funcion of grain size, cell volume and electrical property in relation to Sb doped level and calcination temperature. It is found that the crystal grows up in two steps. The activation energies of crystal growth were calculated to be 21 94 and 4 52 kJ/mol, respectively.