Laboratorio Of Crecimiento Of Cristales

Madrid, Spain

Laboratorio Of Crecimiento Of Cristales

Madrid, Spain
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Carcelen V.,Laboratorio Of Crecimiento Of Cristales | Redondo-Cubero A.,Autonomous University of Madrid | Gutierrez-Puebla E.,CSIC - Institute of Materials Science | Rodriguez-Velamazan J.A.,University of Zaragoza | And 4 more authors.
Chemical Physics Letters | Year: 2010

The effect of the incorporation of Bi in the structure of Cd1-xZnxTe bulk crystals has been investigated by ion channeling, X-ray and neutron diffraction techniques. The analysis of the data reveals that the growing method produces high quality crystals, which are uniformly degraded by the incorporation of Bi. Bismuth shows an amphoteric behavior with the ability to occupy Te positions in the zinc-blende structure and it has been found that Bi also goes to a new site (1/4 1/4 5/4). These results explain the important properties of the material and pave the way for enhanced X- and gamma-rays room temperature detectors. Crown Copyright © 2009.


Ramirez C.,Laboratorio Of Crecimiento Of Cristales | Vijayan N.,Laboratorio Of Crecimiento Of Cristales | Vijayan N.,National Physical Laboratory India | Carcelen V.,Laboratorio Of Crecimiento Of Cristales | Dieguez E.,Laboratorio Of Crecimiento Of Cristales
Journal of Crystal Growth | Year: 2010

The details of the development and design of one-inch diameter Vertical Gradient Freeze furnace are presented. Cd0.9Zn0.1Te crystals were grown to validate the equipment in several crystal growth processes. Low thermal gradient and variable growth velocity were achieved along the whole crystal growth process. The ingots show good sections with few large grains, from which selected crystals demonstrate electrical resistivity of 108 Ω cm. Crown Copyright © 2009.

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