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Optical Imaging and Spectroscopy of Atomically Precise Armchair Graphene Nanoribbons.
Zhao, Sihan; Barin, Gabriela Borin; Cao, Ting; Overbeck, Jan; Darawish, Rimah; Lyu, Tairu; Drapcho, Steve; Wang, Sheng; Dumslaff, Tim; Narita, Akimitsu; Calame, Michel; Müllen, Klaus; Louie, Steven G; Ruffieux, Pascal; Fasel, Roman; Wang, Feng.
Afiliação
  • Zhao S; Department of Physics , University of California at Berkeley , Berkeley , California 94720 , United States.
  • Barin GB; Empa, Swiss Federal Laboratories for Materials Science and Technology , 8600 Dübendorf , Switzerland.
  • Cao T; Department of Physics , University of California at Berkeley , Berkeley , California 94720 , United States.
  • Overbeck J; Department of Materials Science and Engineering , University of Washington , Seattle , Washington United States.
  • Darawish R; Empa, Swiss Federal Laboratories for Materials Science and Technology , 8600 Dübendorf , Switzerland.
  • Lyu T; Empa, Swiss Federal Laboratories for Materials Science and Technology , 8600 Dübendorf , Switzerland.
  • Drapcho S; Department of Physics , University of California at Berkeley , Berkeley , California 94720 , United States.
  • Wang S; Department of Physics , University of California at Berkeley , Berkeley , California 94720 , United States.
  • Dumslaff T; Department of Physics , University of California at Berkeley , Berkeley , California 94720 , United States.
  • Narita A; Materials Science Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.
  • Calame M; Max Planck Institute for Polymer Research , Ackermannweg 10 , D-55128 Mainz , Germany.
  • Müllen K; Max Planck Institute for Polymer Research , Ackermannweg 10 , D-55128 Mainz , Germany.
  • Louie SG; Empa, Swiss Federal Laboratories for Materials Science and Technology , 8600 Dübendorf , Switzerland.
  • Ruffieux P; Max Planck Institute for Polymer Research , Ackermannweg 10 , D-55128 Mainz , Germany.
  • Fasel R; Institute of Physical Chemistry , Johannes Gutenberg-Universität Mainz , 5128 Mainz , Germany.
  • Wang F; Department of Physics , University of California at Berkeley , Berkeley , California 94720 , United States.
Nano Lett ; 20(2): 1124-1130, 2020 Feb 12.
Article em En | MEDLINE | ID: mdl-31916444
ABSTRACT
We report the optical imaging and absorption spectroscopy on atomically precise armchair graphene nanoribbons (GNRs) on insulating fused silica substrates. This is achieved by controlling light polarization on macroscopically aligned GNRs which greatly enhances the optical contrast of the submonolayer GNRs on the insulating substrates. We measure the linear absorption spectra of 7-armchair and 9-armchair GNRs in this study, and the experimental data agree qualitatively with ab inito calculation results. The polarization spectroscopy technique enables an unambiguous optical identification of GNRs and provides a rapid tool to characterize the transferred film over a large area.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article