41 citations · 65 across the 9 of their papers we have counts for
12 papers
Si- and C-Induced Modifications in Vapor-Solid-Grown InGaAs Nanowires: From Crystal Structure to Carrier Dynamics
Hamidreza Esmaielpour, Leopold Rothmayer, Thomas Trinkl +5
Determining the impact of dopants in ternary III-V nanowires (NWs) is crucial for their applications in next-generation optoelectronic and photonic devices; however, the interplay…
Unraveling Quantum Size-Dependent Optoelectrical Phenomena in Hot Carrier Quantum Well Structures
Nil Selen Aydin, Leopold Rothmayer, Nabi Isaev +6
The enhancement of power conversion efficiency beyond the theoretical limit of single-junction solar cells is a key objective in the advancement of hot carrier solar cells. Recent…
Competing mechanisms of dominant radiative and Auger recombination in hot carrier generation in III-V semiconductor nanowires
Hamidreza Esmaielpour, Paul Schmiedeke, Nabi Isaev +4
One-dimensional structures such as nanowires (NWs) show great promise in tailoring the rates of hot carrier thermalization in semiconductors with important implications for the des…
Interplay of Electron Trapping by Defect Midgap State and Quantum Confinement to Optimize Hot Carrier Effect in a Nanowire Structure
Imam Makhfudz, Hamidreza Esmaielpour, Yaser Hajati +2
Hot carrier effect, a phenomenon where charge carriers generated by photon absorption remain energetic by not losing much energy, has been one of the leading strategies in increasi…
Influence of Auger heating and Shockley-Read-Hall recombination on hot carrier dynamics in InGaAs nanowires
Hamidreza Esmaielpour, Nabi Isaev, Jonathan J. Finley +1
Understanding the origin of hot carrier relaxation in nanowires (NWs) with one-dimensional (1D) geometry is significant for designing efficient hot carrier solar cells with such na…
The Role of Nonequilibrium LO Phonons, Pauli Exclusion, and Intervalley Pathways on the Relaxation of Hot Carriers in InGaAs Multi-Quantum-Well Structures
Yongjie Zou, Hamidreza Esmaielpour, Daniel Suchet +2
Under continuous-wave laser excitation in an InGaAs multi-quantum-well (MQW) structure, the carrier temperature extracted from photoluminescence rises faster for 405 nm excitation…
Coherent Phonons-Driven Hot Carrier Effect in a Superlattice Solar Cell
Imam Makhfudz, Nicolas Cavassilas, Yaser Hajati +2
Carrier thermalization in a superlattice solar cell made of polar semiconductors is studied theoretically by considering a minimal model where electron-phonon scattering is the pri…
Hot Carrier Dynamics in InAs-AlAsSb Core-Shell Nanowires
Daniel Sandner, Hamidreza Esmaielpour, Fabio del Giudice +4
Semiconductor nanowires (NWs) have shown evidence of robust hot carrier effects due to their small dimensions. The relaxation dynamics of hot carriers in these nanostructures, gene…
Enhancement of Hot Carrier Effects and Signatures of Confinement in Terms of Thermalization Power in Quantum Well Solar Cells
Imam Makhfudz, Nicolas Cavassilas, Maxime Giteau +4
A theoretical model using electron-phonon scattering rate equations is developed for assessing carrier thermalization under steady-state conditions in two-dimensional systems. The…
Impact of excitation energy on hot carrier properties in InGaAs MQW structure
Hamidreza Esmaielpour, Laurent Lombez, Maxime Giteau +2
Hot carrier solar cells aim to overcome the theoretical limit of single-junction photovoltaic devices by suppressing the thermalization of hot carriers and extracting them through…
Hot-carrier dynamics in InAs/AlAsSb multiple-quantum wells
Herath P. Piyathilaka, Rishmali Sooriyagoda, Hamidreza Esmaielpour +5
A type-II InAs/AlAsSb multiple-quantum well sample is investigated for the photoexcited carrier dynamics as a function of excitation photon energy and lattice tem…
Suppression of phonon-mediated hot carrier relaxation in type-II InAs/AlAsSb quantum wells: a practical route to hot carrier solar cells
H. Esmaielpour, V. R. Whiteside, J. Tang +6
InAs/AlAsSb quantum wells are investigated for their potential as hot carrier solar cells. Continuous wave power and temperature dependent photoluminescence indicate…