52 citations · 205 across the 10 of their papers we have counts for
10 papers
AlGaN/AlN Stranski-Krastanov quantum dots for highly efficient electron beam pumped emitters: The role of miniaturization and composition to attain far UV-C emission
Jesus Cañas, Anjali Harikumar, Stephen T. Purcell +6
Conventional ultraviolet (UV) lamps for disinfection emit radiation in the 255-270 nm range, which poses a high risk of causing cancer and cataracts. To address these concerns, sol…
AlGaN/GaN asymmetric graded-index separate confinement heterostructures designed for electron-beam pumped UV lasers
Sergi Cuesta, Yoann Curé, Fabrice Donatini +9
We present a study of undoped AlGaN/GaN separate confinement heterostructures designed to operate as electron beam pumped ultraviolet lasers. We discuss the effect of spontaneous a…
Internal quantum efficiency of AlGaN/AlN quantum dot superlattices for electron-pumped ultraviolet sources
A. Harikumar, F. Donatini, C. Bougerol +6
In this paper, we describe the growth and characterization of 530-nm-thick superlattices (100 periods) of AlxGa1-xN/AlN (x = 0, 0.1) Stranski-Krastanov quantum dots for application…
Assessment of AlGaN/AlN superlattices on GaN nanowires as active region of electron-pumped ultraviolet sources
I. Dimkou, A. Harikumar, F. Donatini +9
In this paper, we describe the design and characterization of 400-nm-long (88 periods) AlxGa1-xN/AlN (0 < x < 0.1) quantum dot superlattices deposited on self-assembled GaN nanowir…
Interlayer Charge Transfer and Defect Creation in Type I van der Waals Heterostructures
G. Nayak, S. Lisi, W-L. Liu +13
Van der Waals heterostructures give access to a wide variety of new phenomena that emerge thanks to the combination of properties brought in by the constituent layered materials. W…
Static strain tuning of quantum dots embedded in a photonic wire
D. Tumanov, N. Vaish, H. A. Nguyen +5
We use strain to statically tune the semiconductor band gap of individual InAs quantum dots (QDs) embedded in a GaAs photonic wire featuring very efficient single photon collection…
Optical properties of single ZnTe nanowires grown at low temperature
Alberto Artioli, Pamela Rueda-Fonseca, Petr Stepanov +11
Optically active gold-catalyzed ZnTe nanowires have been grown by molecular beam epitaxy, on a ZnTe(111) buffer layer, at low temperature 350\degree under Te rich conditions, and a…
Structural recovery of ion implanted ZnO nanowires
Guillaume Perillat-Merceroz, Fabrice Donatini, Robin Thierry +3
Ion implantation is an interesting method to dope semiconducting materials such as zinc oxide provided that the implantation-induced defects can be subsequently removed. Nitrogen i…
Cathodoluminescence imaging and spectroscopy on a single multiwall boron nitride nanotube
Périne Jaffrennou, Fabrice Donatini, Julien Barjon +5
Cathodoluminescence imaging and spectroscopy experiments on a single bamboo-like boron nitride nanotube are reported. Imaging experiments show that the luminescence is located all…
Photonic Hall Effect in ferrofluids: Theory and Experiments
D. Lacoste, F. Donatini, S. Neveu +2
An experimental and theoretical study on the Photonic Hall Effect (PHE) in liquid and gelled samples of ferrofluids is presented. The ferrofluids are aqueous colloidal suspensions…