248 citations · 417 across the 12 of their papers we have counts for
5 papers · 1 filter
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.…
Physical properties of highly uniform InGaAs pyramidal quantum dots with GaAs barriers: Fine structure splitting in pre-patterned substrates
L. O. Mereni, V. Dimastrodonatoa, G. Juskaa +2
InGaAs Quantum Dots embedded in GaAs barriers, grown in inverted tetrahedral recesses of 7 μm edge, have showed interesting characteristics in terms of uniformity and spectral narr…