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  1. University of Yangon
  2. Department of Physics

Effect of GaP and GaP/InGaP insertion layers on the structural and optical properties of InP quantum dots grown by metal-organic vapor phase epitaxy

http://hdl.handle.net/20.500.12678/0000002372
http://hdl.handle.net/20.500.12678/0000002372
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d116959e-d568-4e4f-92c9-c75fb696503f
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Microelectronic Microelectronic Engineering Journal by Dr.Soe Soe Han.pdf (1331 Kb)
Publication type
Journal article
Upload type
Publication
Title
Title Effect of GaP and GaP/InGaP insertion layers on the structural and optical properties of InP quantum dots grown by metal-organic vapor phase epitaxy
Language en
Publication date 2013
Authors
Soe Soe Han
Higo, A.
Yunpeng, W.
Deura, M.
Sugiyama, M.
Nakano, Y.
Panyakeow, S.
Description
A comparison of ultra-thin insertion layers (GaP and GaP/In0.4Ga0.6P) on InP self-assembled quantum dots (SAQDs) grown on GaAs (0 0 1) substrates using metal-organic vapor phase epitaxy (MOVPE) was studied. Atomic force microscopy (AFM) and photoluminescence (PL) were employed to characterize the optical and structural properties of the grown InP QDs. It is found that the QD dimension, size distribution and density strongly depend on the insertion layer thickness which led to tune the emission wavelength and narrowing of full width at half maximum (FWHM) at low temperature (20–250 K) and at room-temperature PL measurements. This result is attributed to the improved QD size and quantum confinement effect arising from the insertion of the GaP and GaP/In0.4Ga0.6P layers.
Keywords
InP
Identifier http://uyr.uy.edu.mm/handle/123456789/40
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