Enhanced Raman Scattering on In-Plane Anisotropic Layered Materials

doi:10.1021/jacs.5b10144

CORC > 北京大学 > 化学与分子工程学院

	Enhanced Raman Scattering on In-Plane Anisotropic Layered Materials
	Lin, Jingjing ; Liang, Liangbo ; Ling, Xi ; Zhang, Shuqing ; Mao, Nannan ; Zhang, Na ; Sumpter, Bobby G. ; Meunier, Vincent ; Tong, Lianming ; Zhang, Jin
刊名	JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
	2015
关键词	FIELD-EFFECT TRANSISTORS BLACK PHOSPHORUS CHEMICAL ENHANCEMENT SPECTROSCOPY GRAPHENE SPECTRA RES2 ORIENTATION MOLECULES
DOI	10.1021/jacs.5b10144
英文摘要	Surface-enhanced Raman scattering (SERS) on two-dimensional (2D) layered materials has provided a unique platform to study the chemical mechanism (CM) of the enhancement due to its natural separation from electromagnetic enhancement. The CM stems from the charge interactions between the substrate and molecules. Despite the extensive studies of the energy alignment between 2D materials and molecules, an understanding of how the electronic properties of the substrate are explicitly involved in the charge interaction is still unclear. Lately, a new group of 2D layered materials with anisotropic structures, including orthorhombic black phosphorus (BP) and triclinic rhenium disulfide (ReS2), has attracted great interest due to their unique anisotropic electrical and optical properties. Herein, we report a unique anisotropic Raman enhancement on few-layered BP and ReS2 using copper phthalocyanine (CuPc) molecules as a Raman probe, which is absent on isotropic graphene and h-BN. According to detailed Raman tensor analysis and density functional theory calculations, anisotropic charge interactions between the 2D materials and molecules are responsible for the angular dependence of the Raman enhancement. Our findings not only provide new insights into the CM process in SERS, but also open up new avenues for the exploration and application of the electronic properties of anisotropic 2D layered materials.; NSFC [21233001, 21129001, 51272006, 51432002, 51121091, 11374355, 21573004]; MOST [2011CB932601]; New York State under NYSTAR program [C080117]; Office of Naval Research; SCI(E); ARTICLE; tonglm@pku.edu.cn; jinzhang@pku.edu.cn; 49; 15511-15517; 137
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/439060]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Lin, Jingjing,Liang, Liangbo,Ling, Xi,et al. Enhanced Raman Scattering on In-Plane Anisotropic Layered Materials[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2015.
APA	Lin, Jingjing.,Liang, Liangbo.,Ling, Xi.,Zhang, Shuqing.,Mao, Nannan.,...&Zhang, Jin.(2015).Enhanced Raman Scattering on In-Plane Anisotropic Layered Materials.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY.
MLA	Lin, Jingjing,et al."Enhanced Raman Scattering on In-Plane Anisotropic Layered Materials".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2015).