Controllable Fabrication of Pt Nanoparticle Arrays with Various Morphologies and Their Optical Properties

	Controllable Fabrication of Pt Nanoparticle Arrays with Various Morphologies and Their Optical Properties
	Wang Chu 1; Xiang Junhuai 1; Zhang Tao 2; Men Dandan 1; Qiu Xiaofang 1; Zhang Honghua 1
刊名	RARE METAL MATERIALS AND ENGINEERING
	2019-09-01
卷号	47 期号:9 页码:2807-2812
关键词	annealing temperature Pt nanoparticle array localized surface plasmon resonance
ISSN号	1002-185X
通讯作者	Zhang Honghua(zhanghonghua@impcas.ac.cn)
英文摘要	An interesting and simple strategy to prepare Pt nanoparticles (NPs) arrays with different morphologies on a substrate was developed using monolayer colloidal crystal as a template, followed by depositing a layer of Pt film and annealing at different temperatures. Hat-shaped, cup-shaped, rice-shaped and sphere-shaped Pt NPs arrays were obtained after annealing the PS template with Pt film at 300, 500, 700 and 900 degrees C, respectively. The extinction spectra of hat-shaped, cup-shaped and rice-shaped Pt NPs arrays present two obvious peaks, assigning to transverse and longitudinal localized surface plasmon resonances (LSPR) of the Pt NPs. Both the transverse and longitudinal LSPR peaks blue shift when geometrical morphology changes from hat-shaped to cup-shaped, and then to rice-shaped due to increasing annealing temperatures. The transverse LSPR peaks blue shift from ca. 487 nm to ca. 453 nm, and the longitudinal LSPR peaks blue shift from ca. 1201 nm to ca. 898 nm. Compared with hat-shaped, cup-shaped and rice-shaped Pt NPs arrays, there is only one localized surface plasmon resonance peak in extinction spectra of sphere-shaped Pt NPs arrays because of their symmetrical nanostructure. But it presents a peak at ca. 635 nm, which is assigned to Bragg diffraction of the highly ordered structure of the Pt nanosphere arrays. Moreover, the extinction spectra of sphere-shaped Pt NPs arrays with different diameters were studied. The results show the LSPR and diffraction red shift gradually and then get stable with the increase of diameter of nanosphere. This method would motivate more research efforts in developing new methods to fabricate asymmetrical nanostructures. Additionally, these novel properties originating from the anisotropic nanostructures may open up new applications in many fields.
WOS关键词	RESEARCH PROGRESS ; AU ; PERFORMANCE ; SI
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000447680200034
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/39402]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang Honghua
作者单位	1.Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Surface Engn, Nanchang 330013, Jiangxi, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Wang Chu,Xiang Junhuai,Zhang Tao,et al. Controllable Fabrication of Pt Nanoparticle Arrays with Various Morphologies and Their Optical Properties[J]. RARE METAL MATERIALS AND ENGINEERING,2019,47(9):2807-2812.
APA	Wang Chu,Xiang Junhuai,Zhang Tao,Men Dandan,Qiu Xiaofang,&Zhang Honghua.(2019).Controllable Fabrication of Pt Nanoparticle Arrays with Various Morphologies and Their Optical Properties.RARE METAL MATERIALS AND ENGINEERING,47(9),2807-2812.
MLA	Wang Chu,et al."Controllable Fabrication of Pt Nanoparticle Arrays with Various Morphologies and Their Optical Properties".RARE METAL MATERIALS AND ENGINEERING 47.9(2019):2807-2812.