Unraveling the Raman Enhancement Mechanism on 1T '-Phase ReS2 Nanosheets

doi:10.1002/smll.201704079

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	Unraveling the Raman Enhancement Mechanism on 1T '-Phase ReS2 Nanosheets
	Miao, Peng 1; Qin, Jing-Kai 2; Shen, Yunfeng 1; Su, Huimin 3; Dai, Junfeng 3; Song, Bo 4; Du, Yunchen 1; Sun, Mengtao 5; Zhang, Wei6 ; Wang, Hsing-Lin 3
刊名	SMALL
	2018-04-05
卷号	14 期号:14 页码:8
关键词	2D materials charge transfer photoluminescence quenching ReS2 surface-enhanced Raman spectroscopy
ISSN号	1613-6810
DOI	10.1002/smll.201704079
英文摘要	2D transition metal dichalcogenides materials are explored as potential surface-enhanced Raman spectroscopy substrates. Herein, a systematic study of the Raman enhancement mechanism on distorted 1T (1T') rhenium disulfide (ReS2) nanosheets is demonstrated. Combined Raman and photoluminescence studies with the introduction of an Al2O3 dielectric layer unambiguously reveal that Raman enhancement on ReS2 materials is from a charge transfer process rather than from an energy transfer process, and Raman enhancement is inversely proportional while the photoluminescence quenching effect is proportional to the layer number (thickness) of ReS2 nanosheets. On monolayer ReS2 film, a strong resonance-enhanced Raman scattering effect dependent on the laser excitation energy is detected, and a detection limit as low as 10(-9) M can be reached from the studied dye molecules such as rhodamine 6G and methylene blue. Such a high enhancement factor achieved through enhanced charge interaction between target molecule and substrate suggests that with careful consideration of the layer-number-dependent feature and excitation-energy-related resonance effect, ReS2 is a promising Raman enhancement platform for sensing applications.
资助项目	National Natural Science Foundation of China[21471039] ; National Natural Science Foundation of China[21571043] ; National Natural Science Foundation of China[21671047] ; National Natural Science Foundation of China[11204184] ; National Natural Science Foundation of China[11604139] ; National Natural Science Foundation of China[61575196] ; National Natural Science Foundation of China[51772064] ; Fundamental Research Funds for the Central Universities[PIRS of HIT A201502] ; Fundamental Research Funds for the Central Universities[HIT BRETIII 201223] ; China Postdoctoral Science Foundation[2014M560253] ; Youth Innovation Promotion Association of CAS[2015316] ; Postdoctoral Scientific Research Fund of Heilongjiang Province[LBH-Q14062] ; Postdoctoral Scientific Research Fund of Heilongjiang Province[LBH-Z14076] ; Natural Science Foundation of Heilongjiang Province[B2015001] ; Special Funds for the Development of Strategic Emerging Industries in Shenzhen[JCYJ20150630145302235]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000429579100014
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/6305]
专题	科研公共服务平台
通讯作者	Wang, Hsing-Lin; Xu, Cheng-Yan; Xu, Ping
作者单位	1.Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150001, Heilongjiang, Peoples R China 2.Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China 3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China 4.Harbin Inst Technol, Dept Phys, Acad Fundamental & Interdisciplinary Sci, Harbin 150001, Heilongjiang, Peoples R China 5.Univ Sci & Technol, Beijing Key Lab Magnetophotoelect Composite & Int, Ctr Green Innovat, Sch Math & Phys, Beijing 100083, Peoples R China 6.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
推荐引用方式 GB/T 7714	Miao, Peng,Qin, Jing-Kai,Shen, Yunfeng,et al. Unraveling the Raman Enhancement Mechanism on 1T '-Phase ReS2 Nanosheets[J]. SMALL,2018,14(14):8.
APA	Miao, Peng.,Qin, Jing-Kai.,Shen, Yunfeng.,Su, Huimin.,Dai, Junfeng.,...&Xu, Ping.(2018).Unraveling the Raman Enhancement Mechanism on 1T '-Phase ReS2 Nanosheets.SMALL,14(14),8.
MLA	Miao, Peng,et al."Unraveling the Raman Enhancement Mechanism on 1T '-Phase ReS2 Nanosheets".SMALL 14.14(2018):8.