53 citations · 112 across the 6 of their papers we have counts for
6 papers
Long-Lived Coherent Acoustic Phonons in Epitaxially Grown III-V Adiabatic Cavities
Muhammad Hanif, Milos Dubajic, Sandeep. J. Sreerag +4
We provide evidence of strongly confined coherent acoustic phonons inside high quality factor phononic cavities that exhibit tailoredphonon potentials. Using GaAs/AlAs quasiperiodi…
Hot-carrier optoelectronic devices based on semiconductor nanowires
Jonatan Fast, Urs Aeberhard, Stephen P. Bremner +1
In optoelectronic devices such as solar cells and photodetectors, a portion of electron-hole pairs are generated as so called hot carriers with an excess energy that is typically l…
Optoelectronic Reciprocity in Hot Carrier Solar Cells with Ideal Energy Selective Contacts
Andreas Pusch, Milos Dubajic, Michael P. Nielsen +3
Hot carrier solar cells promise theoretical power conversion efficiencies far beyond the single junction limit. However, practical implementations of hot carrier solar cells have l…
Single-nanowire, low-bandgap hot carrier solar cells with tunable open-circuit voltage
Steven Limpert, Adam Burke, I-Ju Chen +8
Compared to traditional pn-junction photovoltaics, hot carrier solar cells offer potentially higher efficiency by extracting work from the kinetic energy of photogenerated "hot car…
Hot Carrier Extraction Using Energy Selective Contacts and Its Impact on the Limiting Efficiency of a Hot Carrier Solar Cell
Steven Limpert, Stephen Bremner
Extraction of charge carriers from a hot carrier solar cell using energy selective contacts, and the impact on limiting power conversion efficiency is analyzed. It is shown that as…
Surface-acoustic-wave-driven luminescence from a lateral p-n junction
J. R. Gell, P. Atkinson, S. P. Bremner +9
The authors report surface-acoustic-wave-driven luminescence from a lateral p-n junction formed by molecular beam epitaxy regrowth of a modulation doped GaAs/AlGaAs quantum well on…