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@article{Curtin:2016:10.1109/JPHOTOV.2016.2545405,
author = {Curtin, OJ and Yoshida, M and Pusch, A and Hylton, NP and Ekins-Daukes, NJ and Phillips, CC and Hess, O},
doi = {10.1109/JPHOTOV.2016.2545405},
journal = {IEEE Journal of Photovoltaics},
pages = {673--678},
title = {Quantum cascade photon ratchets for intermediate band solar cells},
url = {http://dx.doi.org/10.1109/JPHOTOV.2016.2545405},
volume = {6},
year = {2016}
}

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TY  - JOUR
AB  - We propose an antimonide-based quantum cascade design to demonstrate the ratchet mechanism for incorporation into the recently suggested photon ratchet intermediate-band solar cell. We realize the photon ratchet as a semiconductor heterostructure in which electrons are optically excited into an intermediate band and spatially decoupled from the valence band through a type-II quantum cascade. This process reduces both radiative and nonradiative recombination and can thereby increase the solar cell efficiency over intermediate-band solar cells. Our design method uses an adaptive simulated annealing genetic algorithm to determine the optimum thicknesses of semiconductor layers in the quantum cascade, allowing efficient transport (via phonon emission) of the electrons away from the interband active region.
AU  - Curtin,OJ
AU  - Yoshida,M
AU  - Pusch,A
AU  - Hylton,NP
AU  - Ekins-Daukes,NJ
AU  - Phillips,CC
AU  - Hess,O
DO  - 10.1109/JPHOTOV.2016.2545405
EP  - 678
PY  - 2016///
SN  - 2156-3381
SP  - 673
TI  - Quantum cascade photon ratchets for intermediate band solar cells
T2  - IEEE Journal of Photovoltaics
UR  - http://dx.doi.org/10.1109/JPHOTOV.2016.2545405
UR  - http://hdl.handle.net/10044/1/30939
VL  - 6
ER  -

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Prof. Chris Phillips

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