Preparation of ZnO-SnO2 ceramic materials by a coprecipitation method
[EN] Tin (IV)-doped zinc oxide ceramics find its main application as specific gas sensor devices. The sensor ability of the mixture and its particular affinity for a particular gas (selectivity) depends both on the crystalline phases in the microstructure of the sintered semiconductor and on the deg...
| Autores: | , , , , |
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| Tipo de documento: | artigo |
| Data de publicação: | 2006 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositório: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/4117 |
| Acesso em linha: | http://hdl.handle.net/10261/4117 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Doping Microstructure Semiconductor ZnO Dopante Microestructura |
| Resumo: | [EN] Tin (IV)-doped zinc oxide ceramics find its main application as specific gas sensor devices. The sensor ability of the mixture and its particular affinity for a particular gas (selectivity) depends both on the crystalline phases in the microstructure of the sintered semiconductor and on the degree of tin incorporation into ZnO lattice. By means of a highly reactive coprecipitation method it is revealed that the range of solid solution of tin in zinc oxide stays below 0.1 mol % of SnO2 since higher concentrations lead to segregation of a secondary Zn2SnO4 spinel type-phase. |
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