Evidence for Bandgap Opening in Buckled Epitaxial Graphene from Ultrafast Time-Resolved Terahertz Spectroscopy

Momchil T. Mihnev, Feng Wang, Gang Liu, Sara Rothwell, Philip I. Cohen, Leonard C Feldman, Edward H. Conrad, Theodore B. Norris

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

Abstract

Using ultrafast time-resolved THz spectroscopy, we observe two-orders-of-magnitude increase in the relaxation rate in semiconducting epitaxial graphene relative to pristine epitaxial graphene, attributed to enhancement of the optical-phonon-mediated carrier cooling and recombination over a wide range of electron temperatures.

Original languageEnglish
Title of host publication2016 Conference on Lasers and Electro-Optics, CLEO 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781943580118
Publication statusPublished - Dec 16 2016
Event2016 Conference on Lasers and Electro-Optics, CLEO 2016 - San Jose, United States
Duration: Jun 5 2016Jun 10 2016

Other

Other2016 Conference on Lasers and Electro-Optics, CLEO 2016
CountryUnited States
CitySan Jose
Period6/5/166/10/16

Fingerprint

Terahertz spectroscopy
Graphite
Graphene
graphene
Energy gap
Electron temperature
spectroscopy
Spectroscopy
electron energy
Cooling
cooling
augmentation

ASJC Scopus subject areas

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

Cite this

Mihnev, M. T., Wang, F., Liu, G., Rothwell, S., Cohen, P. I., Feldman, L. C., ... Norris, T. B. (2016). Evidence for Bandgap Opening in Buckled Epitaxial Graphene from Ultrafast Time-Resolved Terahertz Spectroscopy. In 2016 Conference on Lasers and Electro-Optics, CLEO 2016 [7787881] Institute of Electrical and Electronics Engineers Inc..

Evidence for Bandgap Opening in Buckled Epitaxial Graphene from Ultrafast Time-Resolved Terahertz Spectroscopy. / Mihnev, Momchil T.; Wang, Feng; Liu, Gang; Rothwell, Sara; Cohen, Philip I.; Feldman, Leonard C; Conrad, Edward H.; Norris, Theodore B.

2016 Conference on Lasers and Electro-Optics, CLEO 2016. Institute of Electrical and Electronics Engineers Inc., 2016. 7787881.

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

Mihnev, MT, Wang, F, Liu, G, Rothwell, S, Cohen, PI, Feldman, LC, Conrad, EH & Norris, TB 2016, Evidence for Bandgap Opening in Buckled Epitaxial Graphene from Ultrafast Time-Resolved Terahertz Spectroscopy. in 2016 Conference on Lasers and Electro-Optics, CLEO 2016., 7787881, Institute of Electrical and Electronics Engineers Inc., 2016 Conference on Lasers and Electro-Optics, CLEO 2016, San Jose, United States, 6/5/16.
Mihnev MT, Wang F, Liu G, Rothwell S, Cohen PI, Feldman LC et al. Evidence for Bandgap Opening in Buckled Epitaxial Graphene from Ultrafast Time-Resolved Terahertz Spectroscopy. In 2016 Conference on Lasers and Electro-Optics, CLEO 2016. Institute of Electrical and Electronics Engineers Inc. 2016. 7787881
Mihnev, Momchil T. ; Wang, Feng ; Liu, Gang ; Rothwell, Sara ; Cohen, Philip I. ; Feldman, Leonard C ; Conrad, Edward H. ; Norris, Theodore B. / Evidence for Bandgap Opening in Buckled Epitaxial Graphene from Ultrafast Time-Resolved Terahertz Spectroscopy. 2016 Conference on Lasers and Electro-Optics, CLEO 2016. Institute of Electrical and Electronics Engineers Inc., 2016.
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AU - Cohen, Philip I.

AU - Feldman, Leonard C

AU - Conrad, Edward H.

AU - Norris, Theodore B.

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