Aarhus University Seal / Aarhus Universitets segl

Søren Ulstrup

Direct View of Hot Carrier Dynamics in Graphene

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Standard

Direct View of Hot Carrier Dynamics in Graphene. / Johannsen, Jens Christian; Ulstrup, Søren; Cilento, Federico; Crepaldi, Alberto; Zacchigna, Michele; Cacho, Cephise; Turcu, I.C.Edmond; Springate, Emma; Fromm, Felix; Raidel, Christian ; Seyller, Thomas; Parmigiani, Fulvio; Grioni, Marco; Hofmann, Philip.

In: Physical Review Letters, Vol. 111, 09.07.2013, p. 027403-1-027403-5.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Johannsen, JC, Ulstrup, S, Cilento, F, Crepaldi, A, Zacchigna, M, Cacho, C, Turcu, ICE, Springate, E, Fromm, F, Raidel, C, Seyller, T, Parmigiani, F, Grioni, M & Hofmann, P 2013, 'Direct View of Hot Carrier Dynamics in Graphene', Physical Review Letters, vol. 111, pp. 027403-1-027403-5. https://doi.org/10.1103/PhysRevLett.111.027403

APA

Johannsen, J. C., Ulstrup, S., Cilento, F., Crepaldi, A., Zacchigna, M., Cacho, C., Turcu, I. C. E., Springate, E., Fromm, F., Raidel, C., Seyller, T., Parmigiani, F., Grioni, M., & Hofmann, P. (2013). Direct View of Hot Carrier Dynamics in Graphene. Physical Review Letters, 111, 027403-1-027403-5. https://doi.org/10.1103/PhysRevLett.111.027403

CBE

Johannsen JC, Ulstrup S, Cilento F, Crepaldi A, Zacchigna M, Cacho C, Turcu ICE, Springate E, Fromm F, Raidel C, Seyller T, Parmigiani F, Grioni M, Hofmann P. 2013. Direct View of Hot Carrier Dynamics in Graphene. Physical Review Letters. 111:027403-1-027403-5. https://doi.org/10.1103/PhysRevLett.111.027403

MLA

Johannsen, Jens Christian et al. "Direct View of Hot Carrier Dynamics in Graphene". Physical Review Letters. 2013, 111. 027403-1-027403-5. https://doi.org/10.1103/PhysRevLett.111.027403

Vancouver

Johannsen JC, Ulstrup S, Cilento F, Crepaldi A, Zacchigna M, Cacho C et al. Direct View of Hot Carrier Dynamics in Graphene. Physical Review Letters. 2013 Jul 9;111:027403-1-027403-5. https://doi.org/10.1103/PhysRevLett.111.027403

Author

Johannsen, Jens Christian ; Ulstrup, Søren ; Cilento, Federico ; Crepaldi, Alberto ; Zacchigna, Michele ; Cacho, Cephise ; Turcu, I.C.Edmond ; Springate, Emma ; Fromm, Felix ; Raidel, Christian ; Seyller, Thomas ; Parmigiani, Fulvio ; Grioni, Marco ; Hofmann, Philip. / Direct View of Hot Carrier Dynamics in Graphene. In: Physical Review Letters. 2013 ; Vol. 111. pp. 027403-1-027403-5.

Bibtex

@article{4b33a9ac46b64f6680f590cc10d1fb0c,
title = "Direct View of Hot Carrier Dynamics in Graphene",
abstract = "The ultrafast dynamics of excited carriers in graphene is closely linked to the Dirac spectrum and playsa central role for many electronic and optoelectronic applications. Harvesting energy from excitedelectron-hole pairs, for instance, is only possible if these pairs can be separated before they lose energyto vibrations, merely heating the lattice. Until now, the hot carrier dynamics in graphene could only beaccessed indirectly. Here, we present a dynamical view on the Dirac cone by time- and angle-resolvedphotoemission spectroscopy. This allows us to show the quasi-instant thermalization of the electron gas toa temperature of 2000 K, to determine the time-resolved carrier density, and to disentangle the subsequentdecay into excitations of optical phonons and acoustic phonons (directly and via supercollisions).",
author = "Johannsen, {Jens Christian} and S{\o}ren Ulstrup and Federico Cilento and Alberto Crepaldi and Michele Zacchigna and Cephise Cacho and I.C.Edmond Turcu and Emma Springate and Felix Fromm and Christian Raidel and Thomas Seyller and Fulvio Parmigiani and Marco Grioni and Philip Hofmann",
year = "2013",
month = jul,
day = "9",
doi = "10.1103/PhysRevLett.111.027403",
language = "English",
volume = "111",
pages = "027403--1--027403--5",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "AMER PHYSICAL SOC",

}

RIS

TY - JOUR

T1 - Direct View of Hot Carrier Dynamics in Graphene

AU - Johannsen, Jens Christian

AU - Ulstrup, Søren

AU - Cilento, Federico

AU - Crepaldi, Alberto

AU - Zacchigna, Michele

AU - Cacho, Cephise

AU - Turcu, I.C.Edmond

AU - Springate, Emma

AU - Fromm, Felix

AU - Raidel, Christian

AU - Seyller, Thomas

AU - Parmigiani, Fulvio

AU - Grioni, Marco

AU - Hofmann, Philip

PY - 2013/7/9

Y1 - 2013/7/9

N2 - The ultrafast dynamics of excited carriers in graphene is closely linked to the Dirac spectrum and playsa central role for many electronic and optoelectronic applications. Harvesting energy from excitedelectron-hole pairs, for instance, is only possible if these pairs can be separated before they lose energyto vibrations, merely heating the lattice. Until now, the hot carrier dynamics in graphene could only beaccessed indirectly. Here, we present a dynamical view on the Dirac cone by time- and angle-resolvedphotoemission spectroscopy. This allows us to show the quasi-instant thermalization of the electron gas toa temperature of 2000 K, to determine the time-resolved carrier density, and to disentangle the subsequentdecay into excitations of optical phonons and acoustic phonons (directly and via supercollisions).

AB - The ultrafast dynamics of excited carriers in graphene is closely linked to the Dirac spectrum and playsa central role for many electronic and optoelectronic applications. Harvesting energy from excitedelectron-hole pairs, for instance, is only possible if these pairs can be separated before they lose energyto vibrations, merely heating the lattice. Until now, the hot carrier dynamics in graphene could only beaccessed indirectly. Here, we present a dynamical view on the Dirac cone by time- and angle-resolvedphotoemission spectroscopy. This allows us to show the quasi-instant thermalization of the electron gas toa temperature of 2000 K, to determine the time-resolved carrier density, and to disentangle the subsequentdecay into excitations of optical phonons and acoustic phonons (directly and via supercollisions).

U2 - 10.1103/PhysRevLett.111.027403

DO - 10.1103/PhysRevLett.111.027403

M3 - Journal article

C2 - 23889442

VL - 111

SP - 027403-1-027403-5

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

ER -