19 citations · 31 across the 3 of their papers we have counts for
5 papers
Correlated electro-optical and structural study of electrically tunable nanowire quantum dot emitters
Maria Spies, Akhil Ajay, Eva Monroy +2
Quantum dots inserted in semiconducting nanowires are a promising platform for the fabrication of single photon devices. However, it is difficult to fully comprehend the electro-op…
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…
Effect of the nanowire diameter on the linearity of the response of GaN-based heterostructured nanowire photodetectors
Maria Spies, Jakub Polaczyński, Akhil Ajay +5
Nanowire photodetectors are investigated because of their compatibility with flexible electronics, or for the implementation of on-chip optical interconnects. Such devices are char…
Effect of Ge-doping on the short-wave, mid- and far-infrared intersubband transitions in GaN/AlGaN heterostructures
Caroline B. Lim, Akhil Ajay, Jonas Lähnemann +2
This paper assesses the effects of Ge-doping on the structural and optical (band-to-band and intersubband (ISB)) properties of GaN/AlGaN multi-quantum wells (QWs) designed to displ…
Effect of the quantum well thickness on the performance of InGaN photovoltaic cells
L. Redaelli, A. Mukhtarova, S. Valdueza-Felip +7
We report on the influence of the quantum well thickness on the effective band gap and conversion efficiency of In0.12Ga0.88N/GaN multiple quantum well solar cells. The band-to-ban…