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Nanotechnology. 2017 Jul 21;28(29):295301. doi: 10.1088/1361-6528/aa7825. Epub 2017 Jun 8.

Enhanced second and third harmonic generations of vertical and planar spiral MoS2 nanosheets.

Author information

1
Department of Physics, Michigan Technological University, Michigan, 49931, United States of America.

Abstract

Molybdenum disulfide (MoS2), as one of the atomically thin two-dimensional transition metal dichalcogenides has novel layer-dependent optical and electronic properties, which make it competitive for potential applications in optoelectronics. Here, we report chemical vapor deposition growth of vertically-standing and planar spiral MoS2 nanosheets. These vertical spiral MoS2 nanosheets are formed by the compression between planar spiral MoS2 in a close proximity. Both structures have a polytype 3R stacking with broken inversion symmetry, exhibiting strong second and third harmonic generations.

PMID:
28594335
DOI:
10.1088/1361-6528/aa7825

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