期刊
NANOTECHNOLOGY
卷 28, 期 29, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/aa7825
关键词
molybdenum disulfide (MoS2); vertical nanosheets; spiral nanostructures; chemical vapor deposition; second harmonic generation; third harmonic generation
资金
- National Science Foundation [DMR 1261910]
- Vice President for Research at Michigan Technological University
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1261910] Funding Source: National Science Foundation
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.
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