Mechanism of injection-enhanced defect transformation in LPE GaAs structures

Tetyana V. Torchynska, Georgiy P. Polupan, Vladimir I. Kooshnirenko, Evgeniy Scherbina

Research output: Contribution to journalConference articlepeer-review

Abstract

It has been shown that the electroluminescence variation in LEDs based on LPE GaAs: Si structures is a complex phenomenon, which is due to recombination-enhanced decomposition of the original complex defects with intrinsic defect appearance, subsequent diffusion of intrinsic defects and microprecipitate creation on final stage. A theoretical model of these processes has been created. The numerical calculation results of the kinetics of GaAs:Si LED EL variation and intrinsic defect transformation have been presented, which enabled us to estimate the recombination-enhanced efficiency of complex defect decomposition and the diffusion coefficient for intrinsic lattice defects, apparently interstitial Ga atoms, as well as to prove that the processes of this intrinsic defect diffusion in GaAs layer is not recombination-enhanced one.

Original languageEnglish
Pages (from-to)1037-1040
Number of pages4
JournalPhysica B: Condensed Matter
Volume273-274
DOIs
StatePublished - 15 Dec 1999
EventProceedings of the 1999 20th International Conference on Defects in Semiconductors (ICDS-20) - Berkeley, CA, USA
Duration: 26 Jul 199930 Jul 1999

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