Enhanced second and third harmonic generations of vertical and planar spiral MoS2 nanosheets. (30th June 2017)

• Record Type: Journal Article
• Authors: Zhang, Jinlin; Ye, Mingxiao; Bhandari, Shiva; Muqri, Aeshah Khudaysh M; Long, Fei; Bigham, Sajjad; Yap, Yoke Khin; Suh, Jae Yong
• Is Part Of: Nanotechnology. Volume 28:Number 29(2017)
• Publication Date: 2017-06-30
• Subjects: molybdenum disulfide (MoS2) -- vertical nanosheets -- spiral nanostructures -- chemical vapor deposition -- second harmonic generation -- third harmonic generation; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/1361-6528/aa7825
• Languages: English
• ISSNs: 0957-4484

Abstract

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.