Charge-Sensitive Surface Optical Phonon in CdS Quantum Dots Studied by Resonant Raman Spectroscopy

	Charge-Sensitive Surface Optical Phonon in CdS Quantum Dots Studied by Resonant Raman Spectroscopy
	Wu, Yongkuan; Jin, Shaoqing; Ye, Yun; Wang, Shengyang; Feng, Zhaochi; Li, Can
刊名	journal of physical chemistry c
	2014-12-25
卷号	118 期号:51 页码:30269-30273
英文摘要	the probe of surface properties of quantum dots (qds) is of great importance as the surface properties of qds greatly influence their performance in photoelectronic devices and photocatalysis. in this work, resonant raman spectroscopy was used to study the surface optical (so) phonon of cds qds. it was found that the intensity of so phonon peak of cds qds increased as the size of the qds decreased, but the dielectric constant of the surrounding media, which showed striking impacts on so phonon peak in previous publications, has no visible influence in our experiments. meanwhile, the intensity of so phonon peak changes obviously when the surface ligands of cds qds or the excitation power/wavelength is changed. besides, the loading of platinum catalyst seriously weakens the intensity of so phonon peak. these experimental results can be interpreted with a charge-sensitive surface optical phonon model.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary
研究领域[WOS]	chemistry ; science & technology - other topics ; materials science
关键词[WOS]	cds/zns core/shell nanocrystals ; semiconductor nanocrystals ; size dependence ; scattering ; electron ; nanowires ; ultrafast ; mode ; gap ; nanoparticles
收录类别	SCI
语种	英语
WOS记录号	WOS:000347360200095
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/145704]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Wu, Yongkuan,Jin, Shaoqing,Ye, Yun,et al. Charge-Sensitive Surface Optical Phonon in CdS Quantum Dots Studied by Resonant Raman Spectroscopy[J]. journal of physical chemistry c,2014,118(51):30269-30273.
APA	Wu, Yongkuan,Jin, Shaoqing,Ye, Yun,Wang, Shengyang,Feng, Zhaochi,&Li, Can.(2014).Charge-Sensitive Surface Optical Phonon in CdS Quantum Dots Studied by Resonant Raman Spectroscopy.journal of physical chemistry c,118(51),30269-30273.
MLA	Wu, Yongkuan,et al."Charge-Sensitive Surface Optical Phonon in CdS Quantum Dots Studied by Resonant Raman Spectroscopy".journal of physical chemistry c 118.51(2014):30269-30273.