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Photoinduced formation of colloidal Au by a near-infrared femtosecond laser
Zhao, CJ; Qu, SL; Qiu, JR; Zhu, CS; Zhao, CJ (reprint author), Chinese Acad Sci, Photon Craft Project, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
2003
Source PublicationJ. Mater. Res.
Volume18Issue:7Pages:1710
AbstractA Au colloid was prepared in a 5 mM HAuCl4 solution through irradiation with a focused infrared femtosecond laser at 800 nm. The Au colloid was characterized by absorption spectra, transmission electron microscopy, and x-ray diffraction analysis. The appearance of absorption peak around 526 nm in the absorption spectra and the wine-red color of sample solution HAuCl4 under focused laser irradiation verified the formation of Au colloid. The solution color changed in the order of yellow --> orange --> wine-red due to the local formation of Au nanoparticles near the focus. The pulse energy, focus position of laser beam, and solvent composite play important roles in formation, grain size, and stability of the Au colloid. A mechanism for the precipitate of Au nanoparticles was proposed, and a multiphoton process of femtosecond laser was involved.
SubtypeArticle
DOI10.1557/JMR.2003.0235
Indexed BySCI
Language英语
WOS IDWOS:000183985200030
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Document Type期刊论文
Version出版稿
Identifierhttp://ir.siom.ac.cn/handle/181231/18090
Collection高功率激光单元技术研发中心
Corresponding AuthorZhao, CJ (reprint author), Chinese Acad Sci, Photon Craft Project, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
Affiliation1.Chinese Acad Sci, Photon Craft Project, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
2.Japan Sci & Technol, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Zhao, CJ,Qu, SL,Qiu, JR,et al. Photoinduced formation of colloidal Au by a near-infrared femtosecond laser[J]. J. Mater. Res.,2003,18(7):1710.
APA Zhao, CJ,Qu, SL,Qiu, JR,Zhu, CS,&Zhao, CJ .(2003).Photoinduced formation of colloidal Au by a near-infrared femtosecond laser.J. Mater. Res.,18(7),1710.
MLA Zhao, CJ,et al."Photoinduced formation of colloidal Au by a near-infrared femtosecond laser".J. Mater. Res. 18.7(2003):1710.
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