Aligned Elongation of Ag Nanoparticles Embedded in Silica Irradiated with High Energy Ni Ions

doi:10.1088/0256-307X/35/9/096102

	Aligned Elongation of Ag Nanoparticles Embedded in Silica Irradiated with High Energy Ni Ions
	Yang, Yi-Tao1 ; Zhang, Chong-Hong1 ; Su, Chang-Hao 1,2; Ding, Zhao-Nan 1,2; Song, Yin1 ; Chen, Yu-Guang 1,2
刊名	CHINESE PHYSICS LETTERS
	2018-09
卷号	35
ISSN号	0256-307X
DOI	10.1088/0256-307X/35/9/096102
英文摘要	Metallic nanoparticle (NP) shapes have a significant influence on the property of composite embedded with metallic NPs. Swift heavy ion irradiation is an effective way to modify shapes of metallic NPs embedded in an amorphous matrix. We investigate the shape deformation of Ag NPs with irradiation fluence, and 357MeV Ni ions are used to irradiate the silica containing Ag NPs, which are prepared by ion implantation and vacuum annealing. The UV-vis results show that the surface plasmon resonance (SPR) peak from Ag NPs shifts from 400 to 377 nm. The SPR peak has a significant shift at fluence lower than 1 x 10(14) ions/cm(2) and shows less shift at fluence higher than 1 x 10(14) ions/cm(2). The TEM results reveal that the shapes of Ag NPs also show significant deformation at fluence lower than 1 x 10(14) ions/cm(2) and show less deformation at fluence higher than 1 x 10(14) ions/cm(2). The blue shift of the SPR peak is considered to be the consequence of defect production and Ag NP shape deformation. Based on the thermal spike model calculation, the temperature of the silica surrounding Ag particles first increases rapidly, then the region of Ag NPs close to the interface of Ag/silica is gradually heated. Therefore, the driven force of Ag NPs deformation is considered as the volume expansion of the first heated silica layer surrounding Ag NPs.
资助项目	National Natural Science Foundation of China[11475230] ; National Natural Science Foundation of China[U1532262]
WOS关键词	SEMICONDUCTORS ; DEFORMATION ; PARTICLES ; SHAPE
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000448134000011
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/64412]
专题	中国科学院近代物理研究所
通讯作者	Yang, Yi-Tao
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yi-Tao,Zhang, Chong-Hong,Su, Chang-Hao,et al. Aligned Elongation of Ag Nanoparticles Embedded in Silica Irradiated with High Energy Ni Ions[J]. CHINESE PHYSICS LETTERS,2018,35.
APA	Yang, Yi-Tao,Zhang, Chong-Hong,Su, Chang-Hao,Ding, Zhao-Nan,Song, Yin,&Chen, Yu-Guang.(2018).Aligned Elongation of Ag Nanoparticles Embedded in Silica Irradiated with High Energy Ni Ions.CHINESE PHYSICS LETTERS,35.
MLA	Yang, Yi-Tao,et al."Aligned Elongation of Ag Nanoparticles Embedded in Silica Irradiated with High Energy Ni Ions".CHINESE PHYSICS LETTERS 35(2018).