LiZnVO_4液相掺杂对Zn_2SnO_4材料感湿特性的影响  

Influence of liquid-doped LiZnVO_4 on humidity sensitive characteristics of Zn_2SnO_4 material

作　　者：傅刚[1] 胡素梅[1] 陈环[1] 丁志文[1] 

机构地区：[1]广州大学物理系,广东广州510405

出　　处：《传感器技术》2003年第7期71-73,76,共4页Journal of Transducer Technology

摘　　要：采用共沉淀法制备出Zn2SnO4 LiZnVO4系纳米粉体,考察了液相掺杂时LiZnVO4添加量对材料显微结构、导电类型以及湿敏性能的影响。实验结果表明,适当的LiZnVO4添加量可明显改善纳米材料的感湿特性。采用共沉淀法制备纳米粉体并使LiZnVO4液相掺杂量为0.1mol的配比,可使Zn2SnO4材料具有低湿电阻小、灵敏度适中的湿敏特性。Zn2SnO4LiZnVO4 system nanometer powders were prepared by coprecipitation.The influence of the amount of liquiddoped LiZnVO4 on the microstructure and conduction and humiditysensitive characteristics of Zn2SnO4 is studied.The experimental results show that humidity sensitive characteristics of nanometer material can be improved by controlling the amount of liquiddoped LiZnVO4.A humidity sensitive material with lower resistance at lower humidity and with proper humidity sensitivity can be made by 0.1*#mol liquiddoped LiZnVO4 in coprecipitation Zn2SnO4 powders.

关 键 词：纳米粉体 微结构 电导 湿敏特性 LiZnVO4 Zn2SnO4 共沉淀法 

分 类 号：TB383[一般工业技术—材料科学与工程]