Journal
MATERIALS LETTERS
Volume 168, Issue -, Pages 68-71Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2016.01.034
Keywords
PbI2; Nanocrystal materials; Nanosheets; Two-dimensional materials
Funding
- Scientific Research Fund of Sichuan Provincial Education Department [15ZB0173]
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In this paper, we report the successful fabrication of ultrathin Pbl(2) single crystal by mechanical exfoliation method after the realization of graphene. The properties of samples were investigated by X-ray diffraction, atomic force microscopy and Raman scattering. The XRD spectrum indicates that Pbl(2) crystal has hexagonal crystalline pattern with 2H type crystal structure. The thickness around 10 nm about 15 layers of Pbl(2) single crystal verified by AFM was obtained. Five Raman bands with peaks at 73, 95, 111, 167, and 214 cm(-1) are observed with 532 nm laser, while there are only four bands can be observed for laser 676.4 nm and 514.5 nm respectively. The results of ultrathin Pbl(2) single crystal will stimulate further theoretical calculations and experimental investigation of their fundamental properties and potential applications. (C) 2016 Elsevier B.V. All rights reserved.
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