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Stark Effect Spectroscopy of Mono- and Few-Layer MoS2.
Klein, J; Wierzbowski, J; Regler, A; Becker, J; Heimbach, F; Müller, K; Kaniber, M; Finley, J J.
Afiliação
  • Klein J; Walter Schottky Institut und Physik Department, Technische Universität München , Am Coulombwall 4, 85748 Garching, Germany.
  • Wierzbowski J; Walter Schottky Institut und Physik Department, Technische Universität München , Am Coulombwall 4, 85748 Garching, Germany.
  • Regler A; Walter Schottky Institut und Physik Department, Technische Universität München , Am Coulombwall 4, 85748 Garching, Germany.
  • Becker J; Institute for Advanced Study, Technische Universität München , Lichtenbergstrasse 2a, 85748 Garching, Germany.
  • Heimbach F; Walter Schottky Institut und Physik Department, Technische Universität München , Am Coulombwall 4, 85748 Garching, Germany.
  • Müller K; Lehrstuhl für Physik funktionaler Schichtsysteme, Physik Department E10, Technische Universität München , James-Franck-Straße 1, 85748 Garching, Germany.
  • Kaniber M; Walter Schottky Institut und Physik Department, Technische Universität München , Am Coulombwall 4, 85748 Garching, Germany.
  • Finley JJ; E. L. Ginzton Laboratory, Stanford University , Stanford, California 94305, United States.
Nano Lett ; 16(3): 1554-9, 2016 Mar 09.
Article em En | MEDLINE | ID: mdl-26845085
ABSTRACT
We demonstrate electrical control of the A-exciton interband transition in mono- and few-layer MoS2 crystals embedded into photocapacitor devices via the DC Stark effect. Electric field-dependent low-temperature photoluminescence spectroscopy reveals a significant tuneability of the A-exciton transition energy up to ∼ 16 meV from which we extract the mean DC exciton polarizability ⟨ß̅N⟩ = (0.58 ± 0.25) × 10(-8) Dm V(-1). The exciton polarizability is shown to be layer-independent, indicating a strong localization of both electron and hole wave functions in each individual layer.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nano Lett Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Alemanha
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nano Lett Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Alemanha