Photoluminescence investigation of p-to-n conversion in CdTe by annealing in Cd atmosphere

P. Horodyský, E. Belas, J. Franc, R. Grill, P. Hlídek, A. Tóth

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The p-to-n conversion of CdTe single crystals caused by low temperature annealing in cadmium atmosphere is investigated by photoluminescence (PL), electron beam induced current method (EBIC) and galvanomagnetic measurements. We show that PL of excitons bound to silver, copper and sodium neutral acceptors in the converted n-type exhibits drastic reduction (about three orders of magnitude) comparing to unconverted p-type or as grown crystal. Simultaneously, we observe that cadmium substitutional acceptors diffuse fast interstitially into remaining p-type, where they recombine with Cd vacancies and accumulate in the sample core. Concentration of donors is only slightly modified. This effect has a potential application in preparation of pure n-type CdTe samples.

Original languageEnglish
Title of host publicationIEEE Nuclear Science Symposium Conference Record
EditorsJ.A. Seibert
Pages4478-4480
Number of pages3
Volume7
Publication statusPublished - 2004
Event2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors - Rome, Italy
Duration: Oct 16 2004Oct 22 2004

Other

Other2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors
CountryItaly
CityRome
Period10/16/0410/22/04

Fingerprint

Cadmium
Photoluminescence
Annealing
Core samples
Induced currents
Excitons
Vacancies
Electron beams
Silver
Sodium
Single crystals
Copper
Crystals
Temperature

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Industrial and Manufacturing Engineering

Cite this

Horodyský, P., Belas, E., Franc, J., Grill, R., Hlídek, P., & Tóth, A. (2004). Photoluminescence investigation of p-to-n conversion in CdTe by annealing in Cd atmosphere. In J. A. Seibert (Ed.), IEEE Nuclear Science Symposium Conference Record (Vol. 7, pp. 4478-4480)

Photoluminescence investigation of p-to-n conversion in CdTe by annealing in Cd atmosphere. / Horodyský, P.; Belas, E.; Franc, J.; Grill, R.; Hlídek, P.; Tóth, A.

IEEE Nuclear Science Symposium Conference Record. ed. / J.A. Seibert. Vol. 7 2004. p. 4478-4480.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Horodyský, P, Belas, E, Franc, J, Grill, R, Hlídek, P & Tóth, A 2004, Photoluminescence investigation of p-to-n conversion in CdTe by annealing in Cd atmosphere. in JA Seibert (ed.), IEEE Nuclear Science Symposium Conference Record. vol. 7, pp. 4478-4480, 2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors, Rome, Italy, 10/16/04.
Horodyský P, Belas E, Franc J, Grill R, Hlídek P, Tóth A. Photoluminescence investigation of p-to-n conversion in CdTe by annealing in Cd atmosphere. In Seibert JA, editor, IEEE Nuclear Science Symposium Conference Record. Vol. 7. 2004. p. 4478-4480
Horodyský, P. ; Belas, E. ; Franc, J. ; Grill, R. ; Hlídek, P. ; Tóth, A. / Photoluminescence investigation of p-to-n conversion in CdTe by annealing in Cd atmosphere. IEEE Nuclear Science Symposium Conference Record. editor / J.A. Seibert. Vol. 7 2004. pp. 4478-4480
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