320 citations · 565 across the 6 of their papers we have counts for
6 papers
Modeling of V graded In(x)Ga(1-x)N solar cells: comparison of strained and relaxed features
Mirsaeid Sarollahi, Mohammad Zamani Alavijeh, Rohith Allaparthi +4
The optical properties of V graded InGaN solar cells are studied. Graded InGaN well structures with the indium composition increasing then decreasing in a V shaped pattern have bee…
Study of simulations of double graded InGaN solar cell structures
Mirsaeid Sarollahi, Manal A. Aldawsari, Rohith Allaparthi +5
The performances of various configurations of InGaN solar cells are compared using nextnano software. Here we compare a flat base graded wall GaN/InGaN structure, with an InxGa1-xN…
Polarized fine structure in the excitation spectrum of a negatively charged quantum dot
M. E. Ware, E. A. Stinaff, D. Gammon +7
We report polarized photoluminescence excitation spectroscopy of the negative trion in single charge tunable InAs/GaAs quantum dots. The spectrum exhibits a p-shell resonance with…
Electrical Spin Pumping of Quantum Dots at Room Temperature
C. H. Li, G. Kioseoglou, O. M. J. van t Erve +7
We report electrical control of the spin polarization of InAs/GaAs self-assembled quantum dots (QDs) at room temperature. This is achieved by electrical injection of spin-polarized…
Optical pumping of electronic and nuclear spin in single charge-tunable quantum dots
A. S. Bracker, E. A. Stinaff, D. Gammon +8
We present a comprehensive examination of optical pumping of spins in individual GaAs quantum dots as we change the charge from positive to neutral to negative using a Schottky dio…
Suppression of Dyakonov-Perel Spin Relaxation in high mobility n-GaAs
R. I. Dzhioev, K. V. Kavokin, V. L. Korenev +7
We report a large and unexpected suppression of the free electron spin relaxation in lightly-doped n-GaAs bulk crystals. The spin relaxation rate shows weak mobility dependence and…