61 citations · 382 across the 24 of their papers we have counts for
24 papers
0D-2D Heterostructure for making very Large Quantum Registers using itinerant Bose-Einstein Condensate of Excitons
Amit Bhunia, Mohit Kumar Singh, Maryam Al Huwayz +2
Presence of coherent resonant tunneling in quantum dot (zero-dimensional) - quantum well (two-dimensional) heterostructure is necessary to explain the collective oscillations of av…
Phase Coherent Oscillations of Excitonic Photocapacitance and Bose-Einstein Condensation in Quantum Coupled 0D-2D Heterostructure
Amit Bhunia, Mohit Kumar Singh, Maryam Al Huwayz +2
We report quantum coherent oscillations of photocapacitance of a double-barrier resonant tunneling heterostructure with bias at 10 K. Periodic presence and absence of sharp exciton…
Experimental evidences of trions and Fermi edge singularity in single barrier GaAs/AlAs/GaAs heterostructure using photocapacitance spectroscopy
Amit Bhunia, Mohit Kumar Singh, Y. Galvao Gobato +2
In this paper, we show how photocapacitance spectra can probe two dimensional excitonic complexes and Fermi edge singularity as a function of applied bias around 100 K. In lower de…
Experimental evidences of quantum confined 2D indirect excitons in single barrier GaAs/AlAs/GaAs heterostructure using photocapacitance at room temperature
Amit Bhunia, Mohit Kumar Singh, Y. Galvao Gobato +2
We investigated excitonic absorptions in GaAs/AlAs/GaAs single barrier heterostructure using both photocapacitance and photocurrent spectroscopies at room temperature. Photocapacit…
Negative activation energy and dielectric signatures of excitons and excitonic Mott transitions in quantum confined laser structures
Amit Bhunia, Kanika Bansal, Mohamed Henini +2
Mostly, optical spectroscopies are used to investigate the physics of excitons, whereas their electrical evidences are hardly explored. Here, we examined a forward bias activated d…
Dynamic frequency dependence of bias activated negative capacitance in semiconductor diodes under high forward bias
Kanika Bansal, Mohamed Henini, Marzook S. Alshammari +1
We observed qualitatively dissimilar frequency dependence of negative capacitive response under high charge injection in two sets of junction diodes which are functionally differen…