Structural and interface properties of an AlN diamond ultraviolet light emitting diode

Two practically fully relaxed AlN domains were identified by x-ray diffractometry for AlN grown on (100) diamond. The epitaxial orientation relationships ( 0001 ) [ 10 1 ¯ 0 ] Al N I || ( 100 ) [ 011 ] diamond for the predominant AlN domain (type I) and ( 0001 ) [ 1 ¯ 2 1 ¯ 0 ] Al N II || ( 100 ) [...

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Veröffentlicht in:Applied physics letters 2004-10, Vol.85 (17), p.3699-3701
Hauptverfasser: Miskys, C. R., Garrido, J. A., Hermann, M., Eickhoff, M., Nebel, C. E., Stutzmann, M., Vogg, G.
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container_end_page 3701
container_issue 17
container_start_page 3699
container_title Applied physics letters
container_volume 85
creator Miskys, C. R.
Garrido, J. A.
Hermann, M.
Eickhoff, M.
Nebel, C. E.
Stutzmann, M.
Vogg, G.
description Two practically fully relaxed AlN domains were identified by x-ray diffractometry for AlN grown on (100) diamond. The epitaxial orientation relationships ( 0001 ) [ 10 1 ¯ 0 ] Al N I || ( 100 ) [ 011 ] diamond for the predominant AlN domain (type I) and ( 0001 ) [ 1 ¯ 2 1 ¯ 0 ] Al N II || ( 100 ) [ 011 ] diamond for the second domain (type II) are obtained. Surface morphology measurements corroborate the good structural quality of the AlN film. In addition, the intrinsic built-in voltage of a n - Al N ∕ p -diamond diode was determined as 1.15 V . By spectrally resolved photocurrent measurements, the ultraviolet electroluminescence emission was confirmed to originate at the heterojunction interface, and is most probably due to a defect center.
doi_str_mv 10.1063/1.1811382
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subjects ALUMINIUM NITRIDES
DIAMONDS
ELECTRIC POTENTIAL
ELECTROLUMINESCENCE
INTERFACES
LAYERS
LIGHT EMITTING DIODES
MATERIALS SCIENCE
MOLECULAR BEAM EPITAXY
MORPHOLOGY
PHOTOCONDUCTIVITY
SEMICONDUCTOR MATERIALS
SURFACES
ULTRAVIOLET RADIATION
X-RAY DIFFRACTION
title Structural and interface properties of an AlN diamond ultraviolet light emitting diode
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