Sulfur-doped indium phosphide on silicon substrate brown by ELOG

• The epitaxial lateral overgrowth (ELOG) of sulfur-doped InP on masked InP/Si substrate in a low-pressure hydride vapor phase epitaxy system was investigated. Octahedral shaped ELOG InP templates with smooth surface were formed and studied by cathodoluminescence (CL). High-energy transition at 825 nm due to the band-filling effect was observed in spectra at 80 K. The band edge transition at 875 nm has no red shift caused by thermal strain. As observed in panchromatic image, defect free area was surrounded by high density threading dislocations pinned by sulfur atoms due to impurity hardening.

Ämnesord

NATURVETENSKAP  -- Kemi -- Materialkemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences -- Materials Chemistry (hsv//eng)

Nyckelord

vapor-phase epitaxy

inp

overgrowth

crystals

gaas

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