publication . Preprint . Article . Other literature type . 2014

Extraordinary Photoluminescence and Strong Temperature/Angle-Dependent Raman Responses in Few-Layer Phosphorene

Name: Extraordinary Photoluminescence and Strong Temperature/Angle-Dependent Raman Responses in Few-Layer Phosphorene
Keywords: Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science

Muhammad Ghufran; Weifeng Li; Qing-Hua Qin; Shuang Zhang; Fan Wang; Renjing Xu; Jiong Yang; Yuerui Lu; Zongfu Yu; Yong-Wei Zhang; ...

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Open Access English

Published: 08 Sep 2014

Summary

Abstract

Phosphorene is a new family member of two-dimensional materials. We observed strong and highly layer-dependent photoluminescence in few-layer phosphorene (2 to 5 layers). The results confirmed the theoretical prediction that few-layer phosphorene has a direct and layer-sensitive band gap. We also demonstrated that few-layer phosphorene is more sensitive to temperature modulation than graphene and MoS2 in Raman scattering. The anisotropic Raman response in few-layer phosphorene has enabled us to use an optical method to quickly determine the crystalline orientation without tunneling electron microscope (TEM) or scanning tunneling microscope (STM). Our results pro...

doi: 10.1021/nn503893j

Subjects

free text keywords: Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science, Optoelectronics, business.industry, business, Raman spectroscopy, symbols.namesake, symbols, Scanning tunneling microscope, law.invention, law, Phosphorene, chemistry.chemical_compound, chemistry, Materials science, Exciton, Raman scattering, Photoluminescence, Graphene, Band gap

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