The broad midgap deep-level transient spectroscopy band in proton (65 MeV) and fast neutron-irradiated n-GaAs

V. N. Brudnyi, A. V. Gradoboev, V. V. Peshev

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

DLTS measurements in H+ (65 MeV)-irradiated n-GaAs reveal a broad band near 250 to 340 K which is similar to the band in neutron-irradiated samples. DLTS evaluation and the modification of this band due to post-irradiation heat treatment indicates that it is formed by two subbands superposed on each other, so the combined band cannot be resolved fully in as-irradiated samples. The temperature position of the peak and the shape of this band are sensitive to electric fields in the compensation depletion layers of the damage clusters produced upon bombardment. The damage cluster model and the related analytical expression for the response have been extended and simulated DLTS spectra have been presented for the samples investigated.

Original languageEnglish
Pages (from-to)229-239
Number of pages11
JournalPhysica Status Solidi (B) Basic Research
Volume212
Issue number2
Publication statusPublished - Apr 1999

Fingerprint

Deep level transient spectroscopy
fast neutrons
Protons
Neutrons
protons
spectroscopy
damage
Heat treatment
Electric fields
Irradiation
bombardment
depletion
heat treatment
broadband
neutrons
irradiation
electric fields
gallium arsenide
evaluation
Temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

The broad midgap deep-level transient spectroscopy band in proton (65 MeV) and fast neutron-irradiated n-GaAs. / Brudnyi, V. N.; Gradoboev, A. V.; Peshev, V. V.

In: Physica Status Solidi (B) Basic Research, Vol. 212, No. 2, 04.1999, p. 229-239.

Research output: Contribution to journalArticle

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