Relationship between the cathodoluminescence emission and resistivity in In doped CdZnTe crystals

Cadmium zinc telluride, CdZnTe, bulk single crystals doped with 1019 at./cm3 of indium in the initial melt were grown by vertical Bridgman technique. The samples were investigated by energy dispersive spectroscopy, cathodoluminiscence (CL), and current-voltage behavior at room temperature. The resul...

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Detalhes bibliográficos
Autores: Rodríguez-Fernández, Jonathan, Carcelén, V., Hidalgo, P., Vijayan, N., Piqueras, J., Sochinskii, N. V., Pérez, J. M., Diéguez, E.
Formato: artículo
Fecha de publicación:2009
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/23646
Acesso em linha:http://hdl.handle.net/10261/23646
Access Level:acceso abierto
Palavra-chave:Cadmium compounds
Cathodoluminescence
Crystal growth from melt
Doping profiles
Electrical resistivity
II-VI semiconductors
Indium
Semiconductor doping
Semiconductor growth
Vacancies (crystal)
X-ray chemical analysis
Zinc compounds
Descrição
Resumo:Cadmium zinc telluride, CdZnTe, bulk single crystals doped with 1019 at./cm3 of indium in the initial melt were grown by vertical Bridgman technique. The samples were investigated by energy dispersive spectroscopy, cathodoluminiscence (CL), and current-voltage behavior at room temperature. The results shows that Cd and Te vacancy concentration depend on the indium and zinc concentrations. CL measurements indicate a relationship between radiative centers associated to Cd and Te vacancies and resistivity values.