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Formation of Ga int...
Formation of Ga interstitials in (Al,In)yGa1-yNxP1-x alloys and their role in carrier recombination
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Thinh, N. Q. (author)
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- Vorona, Igor, 1967- (author)
- Linköpings universitet,Tekniska högskolan,Funktionella elektroniska material
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- Izadifard, Morteza, 1965- (author)
- Linköpings universitet,Tekniska högskolan,Institutionen för fysik, kemi och biologi
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- Buyanova, Irina, 1960- (author)
- Linköpings universitet,Tekniska högskolan,Funktionella elektroniska material
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- Chen, Weimin, 1959- (author)
- Linköpings universitet,Tekniska högskolan,Funktionella elektroniska material
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Hong, Y. G. (author)
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Xin, H. P. (author)
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Tu, C. W. (author)
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(creator_code:org_t)
- AIP Publishing, 2004
- 2004
- English.
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In: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 85, s. 2827-
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Formation of complex defects involving a Ga interstitial (Gai) in (Al,In)yGa1-yNxP1-x alloys and their effects on optical quality are studied by photoluminescence (PL) and optically detected magnetic resonance spectroscopies. Introduction of these defects is shown to be largely promoted by incorporation of N. In quaternary alloys, concentrations of the defects are found to critically depend on the group III atoms that replace Ga, i.e., it is largely enhanced by the presence of Al in alloys, but is only marginally affected by In incorporation. The effect is attributed to differences in surface adatom mobilities of the group III atoms involved and their bonding strength with N. The revealed Gai complexes are shown to act as efficient nonradiative recombination centers degrading the PL efficiency. The defects exhibit high thermal stability and can only be partially removed by postgrowth rapid thermal annealing.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- NATURAL SCIENCES
- NATURVETENSKAP
- Semiconductor physics
- Halvledarfysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Thinh, N. Q.
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Vorona, Igor, 19 ...
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Izadifard, Morte ...
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Buyanova, Irina, ...
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Chen, Weimin, 19 ...
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Hong, Y. G.
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show more...
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Xin, H. P.
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Tu, C. W.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Applied Physics ...
- By the university
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Linköping University