Physical properties of semi-insulating CdTe:Cl single crystals grown from the vapor phase

Popovich, V. D.; Grigorovich, G. M.; Peleshchak, Roman; Tkachuk, P. N.

doi:10.1134/1.1485661

Semiconductors

2002

DOI: 10.1134/1.1485661

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Physical properties of semi-insulating CdTe:Cl single crystals grown from the vapor phase

V. D. Popovich

G. M. Grigorovich

Roman Peleshchak

et al.

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Cited by 6 publications

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“…Appropriate species weights were calculated assuming that chlorine atoms substitute tellurium atoms in the CdTe matrix. Details of the charge synthesis and homogenization process were described in our previous paper [7]. Crystals were grown from preliminary crushed and mechanically ground polycrystalline charge ingots in evacuated quartz ampoules.…”

mentioning

confidence: 99%

Characterization of the vapour grown CdTe crystals for high energy radiation detectors

Popovych¹,

Virt

Tsutsura

et al. 2006

Phys. Status Solidi (c)

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Growth steps and set-up for the pure and chlorine doped cadmium telluride single crystals preparation by a vertical configuration of sublimation travelling heater method without seeding are described. The structural, electrical and transport properties of as-grown material were investigated by different techniques: infrared transmission spectroscopy, double-crystal X-ray diffractometry, Hall effect, conductivity, photoelectric measurements and chemical etching. It was concluded that the most suitable material for fabrication of X-ray and γ-ray non-cooling detectors are single crystals doped with Cl in the range of N Cl = 1018 -10 19 cm -3 .

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mentioning

confidence: 99%

Characterization of the vapour grown CdTe crystals for high energy radiation detectors

Popovych¹,

Virt

Tsutsura

et al. 2006

Phys. Status Solidi (c)

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Spray deposition of CdTe–Te thin films using ethylene-diamine-tetra-acetic acid as a complexing agent in the precursor solution

Krishna¹,

Dutta²

2003

Solar Energy Materials and Solar Cells

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Effect of electric field on spray deposited CdTe thin films

2003

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CdTe thin films have been deposited using spray pyrolysis with and without electric field. The improvement in the film properties with the electric field is observed which is mainly due to the reduction of droplet size. The presence of CdTeO peaks in the X-ray diffraction pattern for films deposited without electric field at 350 8C is attributed to the slow dissociation of complexes containing Cd and Te ions on the substrate. The reduction in the droplet size under the influence of electric field and faster dissociation of droplets at high temperature leads to complete pyrolytic reaction for a nearly oxide free CdTe film formation. Energy dispersive X-ray analysis indicates stoichiometric Cd and Te atomic concentrations, with oxygen and chlorine impurities in varying amount for different substrate temperatures, with and without electric field. The presence of chlorine gives rise to an intense photoluminescence peak at 1.40 eV along with a weak peak at 0.84 eV. The intensities of both peaks diminish when the films are prepared with the electric field, due to reduction of chlorine concentration and morphological changes in the films.

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Physical properties of semi-insulating CdTe:Cl single crystals grown from the vapor phase

Cited by 6 publications

References 8 publications

Characterization of the vapour grown CdTe crystals for high energy radiation detectors

Characterization of the vapour grown CdTe crystals for high energy radiation detectors

Spray deposition of CdTe–Te thin films using ethylene-diamine-tetra-acetic acid as a complexing agent in the precursor solution

Effect of electric field on spray deposited CdTe thin films

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