Tailoring the size and distribution of Ag nanoparticles in silica glass by defects

doi:10.1016/j.nimb.2013.12.015

	Tailoring the size and distribution of Ag nanoparticles in silica glass by defects
	Yang, YT2 ; Song, Y2 ; Zhang, CH2 ; Gou, J2 ; Zhang, LQ2 ; Zhang, HQ 1; Liu, J 1; Xian, YQ 1; Ma, YZ2
刊名	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
	2014
卷号	321 期号:321 页码:14-18
关键词	Ag nanoparticle Defect Nanofabrication Silica glass
ISSN号	0168-583X
DOI	10.1016/j.nimb.2013.12.015
英文摘要	The composites embedded with metallic nanoparticles show large nonlinear optical susceptibility and strong surface plasmon resonance absorption, which enable potential application in opto-electronics. Ion implantation has been proven to be a powerful technique of synthesis of metallic nanoparticles due to its versatility and compatibility. However, the synthesis of nanoparticles by ion implantation inevitably leads to a broad size distribution due to Ostwald ripening process. The broad size distribution has a negative effect on improving the figure of merits for nonlinear optics. In this paper, we tried to introduce defects in silica glass to act as pre-nucleation centers to mediate the size and distribution of Ag nanoparticles. In experiment, the silica glass samples were pre-irradiated by 200 key Ar ions to fluences of 0.8, 2.0 and 5.0 x 10(16) ions/cm(2), and then 200 keV Ag ions were implanted into the pre-irradiated samples to fluence of 2.0 x 10(16) ions/cm(2). UV-VIS results show that the absorbance intensity of Ag SPR peak initially increases and then decreases with pre-irradiation fluence, which implies the change in size and density of Ag nanoparticles in samples. TEM results verify that Ag nanoparticles in the sample pre-irradiated to the fluence of 0.8 x 10(16) ions/cm(2) grow bigger and distribute in a relatively narrow region comparing with that without pre-irradiation. With further increase of pre-irradiation fluence, the size of Ag nanoparticles shows a depth dependent distribution. A boundary can be clear seen at the depth of 110 nm, larger Ag nanoparticles disperse in region shallower than 110 nm, and smaller Ag nanoparticles disperse in the region deeper than 110 nm. The average size of Ag nanoparticles initially increases and then decreases with pre-irradiation fluence. Therefore, the introduction of defects by pre-irradiation could be an effective way to tailor the size and distribution of metallic nanoparticles in matrix. (C) 2013 Elsevier B.V. All rights reserved.
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资助项目	National Magnetic Confinement Fusion Program[2011GB108003]
WOS关键词	ION-IMPLANTATION ; SILVER NANOPARTICLES ; OPTICAL-ABSORPTION ; GOLD NANOCLUSTERS ; IRRADIATION ; NUCLEATION ; SPINEL ; SIO2
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000331858900003
内容类型	期刊论文
源URL	[http://ir.impcas.ac.cn/handle/113462/14989]
专题	近代物理研究所_能源材料研究组近代物理研究所_材料研究中心
作者单位	1.中国科学院大学 2.中国科学院近代物理研究所
推荐引用方式 GB/T 7714	Yang, YT,Song, Y,Zhang, CH,et al. Tailoring the size and distribution of Ag nanoparticles in silica glass by defects[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2014,321(321):14-18.
APA	Yang, YT.,Song, Y.,Zhang, CH.,Gou, J.,Zhang, LQ.,...&Ma, YZ.(2014).Tailoring the size and distribution of Ag nanoparticles in silica glass by defects.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,321(321),14-18.
MLA	Yang, YT,et al."Tailoring the size and distribution of Ag nanoparticles in silica glass by defects".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 321.321(2014):14-18.