Effect of low magnetic field treatment on spectra of radiative recombination centers in indium phosphide structures

• Published in: Semiconductor Physics Quantum Electronics & Optoelectronics
• Date: 2009
• Main Author: Red’ko, R. R.
• Format: Article
• Language: English
• Published: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2009
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/118606
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Effect of low magnetic field treatment on spectra of radiative recombination centers in indium phosphide structures / R. Red’ko // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2009. — Т. 12, № 1. — С. 83-85. — Бібліогр.: 11 назв. — англ.

We present the results of investigations of the effect caused by low magnetic
 field treatment on InP single crystals impurity-defect composition. This effect was found
 when studying the radiative recombination (luminescence) spectra in the 0.6-2.5 µm
 range at 77 K. The static magnet with B = 0.44 T was used as a source of magnetic field.
 We studied samples of two groups: porous InP crystals and epitaxial layers grown on
 porous substrate. The crystals of both groups were not specially doped. It has been
 obtained that treatment even for 0.02 min resulted in considerable changes in
 luminescence spectra. The luminescence intensities after treatment increase at first, but
 later behavior is nonmonotonic: next treatment can result in decrease or increase a value
 of intensities of both observed bands. It should be noted that the luminescence intensities
 of epitaxial layers, perhaps, changed as well as concentration of nonradiative centers
 changed. But for porous indium phosphide, these features were not observed.