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Bandgap Widening of Phase Quilted, 2D MoS 2 by Oxidative Intercalation
Author(s) -
Song Sung Ho,
Kim Bo Hyun,
Choe DukHyun,
Kim Jin,
Kim Dae Chul,
Lee Dong Ju,
Kim Jung Mo,
Chang Kee Joo,
Jeon Seokwoo
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201500649
Subject(s) - band gap , materials science , intercalation (chemistry) , nanotechnology , phase (matter) , optoelectronics , inorganic chemistry , chemistry , organic chemistry
Controllable bandgap widening from 1.8 to 2.6 eV is reported from oxidized MoS 2 sheets that are composed of quilted phases of various MoS x O y 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 MoS x O y sheets.