Literature DB >> 26845085

Stark Effect Spectroscopy of Mono- and Few-Layer MoS2.

J Klein1, J Wierzbowski1, A Regler1,2, J Becker1, F Heimbach3, K Müller1,4, M Kaniber1, J J Finley1.   

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 ⟨β̅N⟩ = (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.

Entities:  

Keywords:  2D materials; electrical control; exciton polarizability; molybdenum disulfide; quantum confined Stark effect; transition metal dichalcogenides

Year:  2016        PMID： 26845085     DOI： 10.1021/acs.nanolett.5b03954

Source DB:  PubMed          Journal:  Nano Lett        ISSN： 1530-6984            Impact factor:   11.189


  3 in total

1.  Manipulation of local optical properties and structures in molybdenum-disulfide monolayers using electric field-assisted near-field techniques.

Authors:  Junji Nozaki; Musashi Fukumura; Takaaki Aoki; Yutaka Maniwa; Yohei Yomogida; Kazuhiro Yanagi
Journal:  Sci Rep       Date:  2017-04-05       Impact factor: 4.379

2.  Dissociation of two-dimensional excitons in monolayer WSe2.

Authors:  Mathieu Massicotte; Fabien Vialla; Peter Schmidt; Mark B Lundeberg; Simone Latini; Sten Haastrup; Mark Danovich; Diana Davydovskaya; Kenji Watanabe; Takashi Taniguchi; Vladimir I Fal'ko; Kristian S Thygesen; Thomas G Pedersen; Frank H L Koppens
Journal:  Nat Commun       Date:  2018-04-24       Impact factor: 14.919

3.  Diversity of trion states and substrate effects in the optical properties of an MoS2 monolayer.

Authors:  Matthias Drüppel; Thorsten Deilmann; Peter Krüger; Michael Rohlfing
Journal:  Nat Commun       Date:  2017-12-14       Impact factor: 14.919
  3 in total

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