Two-pulse space-time photocurrent correlations at graphene p-n junctions reveal hot carrier cooling dynamics near the Fermi level

Two-pulse space-time photocurrent correlations at graphene p-n junctions reveal hot carrier cooling dynamics near the Fermi level

Two-pulse excitation at a graphene p-n junction generates a time-dependent photocurrent response that we show functions as a novel ultrafast thermometer of the hot electron temperature, Te(t). The extracted hot electron cooling rates are consistent with heat dissipation near the Fermi level of graph...

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Bibliographic Details
Main Authors: McEuen P.L., Park J., Ralph D.C., Shi S., Graham M.W.
Format: Article
Language:English
Published: EDP Sciences 2013-03-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20134104026
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spelling doaj-88ffb4f8b9c8426c98a6ec66291671222021-08-02T01:31:36ZengEDP SciencesEPJ Web of Conferences2100-014X2013-03-01410402610.1051/epjconf/20134104026Two-pulse space-time photocurrent correlations at graphene p-n junctions reveal hot carrier cooling dynamics near the Fermi levelMcEuen P.L.Park J.Ralph D.C.Shi S.Graham M.W.Two-pulse excitation at a graphene p-n junction generates a time-dependent photocurrent response that we show functions as a novel ultrafast thermometer of the hot electron temperature, Te(t). The extracted hot electron cooling rates are consistent with heat dissipation near the Fermi level of graphene occurring by an acoustic phonon supercollision mechanism. http://dx.doi.org/10.1051/epjconf/20134104026
collection DOAJ
language English
format Article
sources DOAJ
author McEuen P.L.
Park J.
Ralph D.C.
Shi S.
Graham M.W.
spellingShingle McEuen P.L.
Park J.
Ralph D.C.
Shi S.
Graham M.W.
Two-pulse space-time photocurrent correlations at graphene p-n junctions reveal hot carrier cooling dynamics near the Fermi level
EPJ Web of Conferences
author_facet McEuen P.L.
Park J.
Ralph D.C.
Shi S.
Graham M.W.
author_sort McEuen P.L.
title Two-pulse space-time photocurrent correlations at graphene p-n junctions reveal hot carrier cooling dynamics near the Fermi level
title_short Two-pulse space-time photocurrent correlations at graphene p-n junctions reveal hot carrier cooling dynamics near the Fermi level
title_full Two-pulse space-time photocurrent correlations at graphene p-n junctions reveal hot carrier cooling dynamics near the Fermi level
title_fullStr Two-pulse space-time photocurrent correlations at graphene p-n junctions reveal hot carrier cooling dynamics near the Fermi level
title_full_unstemmed Two-pulse space-time photocurrent correlations at graphene p-n junctions reveal hot carrier cooling dynamics near the Fermi level
title_sort two-pulse space-time photocurrent correlations at graphene p-n junctions reveal hot carrier cooling dynamics near the fermi level
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2013-03-01
description Two-pulse excitation at a graphene p-n junction generates a time-dependent photocurrent response that we show functions as a novel ultrafast thermometer of the hot electron temperature, Te(t). The extracted hot electron cooling rates are consistent with heat dissipation near the Fermi level of graphene occurring by an acoustic phonon supercollision mechanism.
url http://dx.doi.org/10.1051/epjconf/20134104026
work_keys_str_mv AT mceuenpl twopulsespacetimephotocurrentcorrelationsatgraphenepnjunctionsrevealhotcarriercoolingdynamicsnearthefermilevel
AT parkj twopulsespacetimephotocurrentcorrelationsatgraphenepnjunctionsrevealhotcarriercoolingdynamicsnearthefermilevel
AT ralphdc twopulsespacetimephotocurrentcorrelationsatgraphenepnjunctionsrevealhotcarriercoolingdynamicsnearthefermilevel
AT shis twopulsespacetimephotocurrentcorrelationsatgraphenepnjunctionsrevealhotcarriercoolingdynamicsnearthefermilevel
AT grahammw twopulsespacetimephotocurrentcorrelationsatgraphenepnjunctionsrevealhotcarriercoolingdynamicsnearthefermilevel
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