Bandgap Widening of Phase Quilted, 2D MoS2 by Oxidative Intercalation

Controllable bandgap widening from 1.8 to 2.6 eV is reported from oxidized MoS2 sheets that are composed of quilted phases of various MoSxOy flakes. The exfoliated flakes have large size (≥100 μm × 100 μm) sheets with average thickness of 1.7 nm. Remarkably, fine reversible tuning of the bandgap is...

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Veröffentlicht in:Advanced materials (Weinheim) 2015-05, Vol.27 (20), p.3152-3158
Hauptverfasser: Song, Sung Ho, Kim, Bo Hyun, Choe, Duk-Hyun, Kim, Jin, Kim, Dae Chul, Lee, Dong Ju, Kim, Jung Mo, Chang, Kee Joo, Jeon, Seokwoo
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Sprache:eng
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Zusammenfassung:Controllable bandgap widening from 1.8 to 2.6 eV is reported from oxidized MoS2 sheets that are composed of quilted phases of various MoSxOy flakes. The exfoliated flakes have large size (≥100 μm × 100 μm) sheets with average thickness of 1.7 nm. Remarkably, fine reversible tuning of the bandgap is achieved by postprocessing sulfurization of the MoSxOy sheets.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201500649