publication . Preprint . Article . Other literature type . 2014

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

Muhammad Ghufran; Weifeng Li; Qing-Hua Qin; Shuang Zhang; Fan Wang; Renjing Xu; Jiong Yang; Yuerui Lu; Zongfu Yu; Yong-Wei Zhang; ...
Open Access English
  • Published: 08 Sep 2014
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...
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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