Hot-fermi carrier multiplication in monolayer graphene

Soonyoung Cha, Seongchu Lim, Jeongmook Choi, Young Hee Lee, Hyunyong Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report observation of thresholdless carrier multiplication in a monolayer graphene, where the carrier multiplication is driven by hot-carrier thermalization process. By utilizing ultrafast optical-pump and terahertz-probe spectroscopy, we directly demonstrate the quantitative carrier-multiplication efficiency.

Original languageEnglish
Title of host publicationCLEO
Subtitle of host publicationQELS_Fundamental Science, CLEO:QELS FS 2013
PagesQTh3D.5
Publication statusPublished - 2013 Nov 21
EventCLEO: QELS_Fundamental Science, CLEO:QELS FS 2013 - San Jose, CA, United States
Duration: 2013 Jun 92013 Jun 14

Publication series

NameCLEO: QELS_Fundamental Science, CLEO:QELS FS 2013

Other

OtherCLEO: QELS_Fundamental Science, CLEO:QELS FS 2013
CountryUnited States
CitySan Jose, CA
Period13/6/913/6/14

Fingerprint

Hot carriers
Graphite
multiplication
Graphene
Monolayers
graphene
Pumps
Spectroscopy
pumps
probes
spectroscopy

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Cha, S., Lim, S., Choi, J., Lee, Y. H., & Choi, H. (2013). Hot-fermi carrier multiplication in monolayer graphene. In CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013 (pp. QTh3D.5). (CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013).
Cha, Soonyoung ; Lim, Seongchu ; Choi, Jeongmook ; Lee, Young Hee ; Choi, Hyunyong. / Hot-fermi carrier multiplication in monolayer graphene. CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013. 2013. pp. QTh3D.5 (CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013).
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title = "Hot-fermi carrier multiplication in monolayer graphene",
abstract = "We report observation of thresholdless carrier multiplication in a monolayer graphene, where the carrier multiplication is driven by hot-carrier thermalization process. By utilizing ultrafast optical-pump and terahertz-probe spectroscopy, we directly demonstrate the quantitative carrier-multiplication efficiency.",
author = "Soonyoung Cha and Seongchu Lim and Jeongmook Choi and Lee, {Young Hee} and Hyunyong Choi",
year = "2013",
month = "11",
day = "21",
language = "English",
isbn = "9781557529725",
series = "CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013",
pages = "QTh3D.5",
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Cha, S, Lim, S, Choi, J, Lee, YH & Choi, H 2013, Hot-fermi carrier multiplication in monolayer graphene. in CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013. CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013, pp. QTh3D.5, CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013, San Jose, CA, United States, 13/6/9.

Hot-fermi carrier multiplication in monolayer graphene. / Cha, Soonyoung; Lim, Seongchu; Choi, Jeongmook; Lee, Young Hee; Choi, Hyunyong.

CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013. 2013. p. QTh3D.5 (CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Hot-fermi carrier multiplication in monolayer graphene

AU - Cha, Soonyoung

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AU - Choi, Hyunyong

PY - 2013/11/21

Y1 - 2013/11/21

N2 - We report observation of thresholdless carrier multiplication in a monolayer graphene, where the carrier multiplication is driven by hot-carrier thermalization process. By utilizing ultrafast optical-pump and terahertz-probe spectroscopy, we directly demonstrate the quantitative carrier-multiplication efficiency.

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M3 - Conference contribution

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Cha S, Lim S, Choi J, Lee YH, Choi H. Hot-fermi carrier multiplication in monolayer graphene. In CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013. 2013. p. QTh3D.5. (CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013).