248 citations · 417 across the 12 of their papers we have counts for
6 papers · 1 filter
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…
Wettability and "petal effect" of GaAs native oxides
A. Gocalinska, K. Gradkowski, V. Dimastrodonato +4
We discuss unreported transitions of oxidized GaAs surfaces between (super)hydrophilic and hydrophobic states when stored in ambient conditions. Contact angles higher than 90deg an…
AlGaAs/GaAs/AlGaAs quantum wells as a sensitive tool for the MOVPE reactor environment
V. Dimastrodonato, L. O. Mereni, R. J. Young +1
We present in this work a simple Quantum Well (QW) structure consisting of GaAs wells with AlGaAs barriers as a probe for measuring the performance of arsine purifiers within a Met…
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…