中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Silicon nanowires decorated with au nanoparticles and their spectroscopic properties

文献类型:期刊论文

作者Zhang Xiaodan1,2; Cao Yang1; He Junhui1
刊名Acta chimica sinica
出版日期2009-06-28
卷号67期号:12页码:1277-1284
关键词Silicon nanowire Gold nanoparticle Uv-visible spectrum Fluorescence spectrum
ISSN号0567-7351
通讯作者Zhang xiaodan()
英文摘要Au nanoparticles (aunps) were loaded on silicon nanowires (sinws) via the redox reaction between haucl4 and hf-treated sinws in the presence of hexanethiol as stabilizer. as a result, aunps/sinws composites with aunps of varied sizes from 3.2 to 7.0 nm were obtained by adjusting the haucl4 concentration. the absorption and emission properties of the aunps/sinws were investigated by uv-visible and fluorescence spectroscopy methods. uv-vis spectra indicated that the aunps/sinws composites had absorption bands ranging from 530 to 580 nm, which were attributed to the aunps surface plasmon resonance (spr). the spr band was observed to red-shift with increase of the aunps size. fluorescence spectra indicated that the fluorescence profile and peak position of the aunps/sinws were not changed significantly compared to the hf-treated sinws in the red and green regions. in the blue region, however, different from as-grown sinws and the hf-treated sinws with an emission at around 464 nm, an intense fluorescence band was observed at 423 nm, which was supposed to result from radiative recombination of fermi level electrons and sp- or d-band holes in aunps.
WOS关键词X-RAY-ABSORPTION ; NOBLE-METAL NANOPARTICLES ; IN-SITU SYNTHESIS ; AQUEOUS-SOLUTIONS ; PD NANOPARTICLES ; POROUS SILICON ; PHOTOLUMINESCENCE PROPERTIES ; SEMICONDUCTOR NANOWIRES ; REDUCTIVE DEPOSITION ; GOLD NANOPARTICLES
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
语种英语
WOS记录号WOS:000267849800001
出版者SCIENCE PRESS
URI标识http://www.irgrid.ac.cn/handle/1471x/2399149
专题中国科学院大学
通讯作者Zhang Xiaodan
作者单位1.Chinese Acad Sci, Tech Inst Phys & Chem, Funct Nanomat Lab, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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GB/T 7714
Zhang Xiaodan,Cao Yang,He Junhui. Silicon nanowires decorated with au nanoparticles and their spectroscopic properties[J]. Acta chimica sinica,2009,67(12):1277-1284.
APA Zhang Xiaodan,Cao Yang,&He Junhui.(2009).Silicon nanowires decorated with au nanoparticles and their spectroscopic properties.Acta chimica sinica,67(12),1277-1284.
MLA Zhang Xiaodan,et al."Silicon nanowires decorated with au nanoparticles and their spectroscopic properties".Acta chimica sinica 67.12(2009):1277-1284.

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来源:中国科学院大学

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