248 citations · 559 across the 18 of their papers we have counts for
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Issues related to the usage of nitrogen as carrier gas for the MOVPE growth of GaSb/InAs heterostructures on InAs pseudosubstrates
Hanno Kroencke, Agnieszka Gocalinska, Valeria Dimastrodonato +2
GaSb/InAs/GaSb layer stacks have been grown on InAs metamorphic substrates (pseudosubstrates) by MOVPE, using nitrogen as major carrier gas. We demonstrate that GaSb growth by nitr…
Indium segregation during III-V quantum wire and quantum dot formation on patterned substrates
Stefano T. Moroni, Valeria Dimastrodonato, Tung-Hsun Chung +4
We report a model for metalorganic vapor-phase epitaxy on non-planar substrates, specifically V-grooves and pyramidal recesses, which we apply to the growth of InGaAs nanostructure…
Evaluation of defect density by top-view large scale AFM on metamorphic structures grown by MOVPE
Agnieszka Gocalinska, Marina Manganaro, Valeria Dimastrodonato +1
We demonstrate an atomic force microscopy based method for estimation of defect density by identification of threading dislocations on a non-flat surface resulting from metamorphic…
Complex optical signatures from quantum dot nanostructures and behavior in inverted pyramidal recesses
G. Juska, V. Dimastrodonato, L. O. Mereni +6
A study of previously overlooked structural and optical properties of InGaAs heterostructures grown on (111)B oriented GaAs substrates patterned with inverted 7.5 um pitch pyramida…
Unusual nanostructures of "lattice matched" InP on AlInAs
A. Gocalinska, M. Manganaro, G. Juska +6
We show that the morphology of the initial monolayers of InP on Al0.48In0.52As grown by metalorganic vapor-phase epitaxy does not follow the expected layer-by-layer growth mode of…
Transient and self-limited nanostructures on patterned surfaces
V. Dimastrodonato, E. Pelucchi, P. A. Zestanakis +1
Site-controlled quantum dots formed during the deposition of (Al)GaAs layers by metalorganic vapor-phase epitaxy on GaAs(111)B substrates patterned with inverted pyramids result in…
Decomposition, diffusion, and growth rate anisotropies in self-limited profiles during metalorganic vapor-phase epitaxy of seeded nanostructures
E. Pelucchi, V. Dimastrodonato, A. Rudra +5
We present a model for the interplay between the fundamental phenomena responsible for the formation of nanostructures by metalorganic vapour phase epitaxy on patterned (001)/(111)…
Impact of Nitrogen incorporation on pseudomorphic site-controlled quantum dots grown by Metalorganic Vapour Phase Epitaxy
V. Dimastrodonato, L. O. Mereni, G. Juska +1
We report on some surprising optical properties of diluted nitride InGaAs_(1-y)N_y /GaAs (y<<1) pyramidal site-controlled quantum dots, grown by metalorganic vapor phase epitaxy on…
Relevance of the purity level in a MetalOrganic Vapour Phase Epitaxy reactor environment for the growth of high quality pyramidal sitecontrolled Quantum Dots
Valeria Dimastrodonato, Lorenzo O. Mereni, Robert J. Young +1
We report in this work on the spectral purity of pyramidal site-controlled InGaAs/AlGaAs Quantum Dots grown by metalorganic vapour phase epitaxy on(111)B oriented GaAs substrates.…
Low-angle misorientation dependence of the optical properties of InGaAs/InAlAs quantum wells
Robert J. Young, Lorenzo O. Mereni, Nikolay Petkov +5
We investigate the dependence of the low-temperature photoluminescence linewidths from InP-lattice-matched InGaAs/InAlAs quantum wells on the low-angle misorientation from the (100…