Correlation of resistivity with zinc content in a vapor grown (Cd,Zn)Te:Se

Autor:	Alex Fauler, Ernesto Diéguez, J. L. Castaño, Michael Fiederle, Victoria Corregidor, Klaus-Werner Benz, V. Babentsov
Rok vydání:	2002
Předmět:	Photoluminescence Materials science Physics and Astronomy (miscellaneous) chemistry Electrical resistivity and conductivity Doping Analytical chemistry X-ray chemistry.chemical_element Infrared spectroscopy Zinc Molar absorptivity Selenium
Zdroj:	Applied Physics Letters. 81:5153-5155
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.1533124
Popis:	We report the possibility to grow semi-insulating (Cd,Zn)Te:Se crystals by the modified Markov method (MMM) from the vapor phase. When oriented Cd(Te,Se) seed material was used for the growth, lattice matching and doping with Se resulted in an increase of resistivity up to several units of 109 Ω cm. A homogenous Zn distribution was also observed. The content of Se and Zn in the seed and grown crystals was determined by photoluminescence and energy dispersive analysis by x ray measurements. Resistivity and Zn concentration maps show a good spatial correlation in which the highest values of resistivity correspond to the areas of the highest Zn concentration. The main part of the crystals demonstrate a low extinction coefficient in the IR spectral region, except for the Zn inhomogeneity region.
Databáze:	OpenAIRE
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