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dc.contributor.authorHuang, Yi-Fanzh_CN
dc.contributor.authorZhu, Hong-Pingzh_CN
dc.contributor.authorLiu, Guo-Kunzh_CN
dc.contributor.authorWu, De-Yinzh_CN
dc.contributor.authorRen, Binzh_CN
dc.contributor.authorTian, Zhong-Qunzh_CN
dc.contributor.author田中群zh_CN
dc.date.accessioned2011-04-26T08:03:13Z
dc.date.available2011-04-26T08:03:13Z
dc.date.issued2010-06zh_CN
dc.identifier.citationJ. Am. Chem. Soc., 2010, 132 (27):9244–9246zh_CN
dc.identifier.issn0002-7863zh_CN
dc.identifier.urihttp://dx.doi.org/doi:10.1021/ja101107zzh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/2102
dc.description.abstractSurface-enhanced Raman spectroscopy (SERS) has long been considered as a noninvasive technique that can obtain the fingerprint vibrational information of surface species. We demonstrated in this paper that a laser with a power level considered to be low in the traditional SERS measurement can already lead to a significant surface reaction. para-Aminothiophenol, an important probe molecule in SERS, was found to be oxidized to form 4,4'-dimercaptoazobenzene (DMAB) on a roughened silver surface during the SERS measurement. The assumption was confirmed experimentally by surface mass spectroscopy and SERS as well as electrochemistry of the synthesized DMAB, which agrees well with theoretical calculations. A defocusing method was used to avoid the laser induced surface reaction and perform reliable SERS characterization and identification, which can effectively avoid erroneous interpretation of the distorted experimental result.zh_CN
dc.description.sponsorshipMOST of China [2009CB930703, 2007CB935603, 2007DFC40440]; NSFC [20620130427, 20825313, 20827003, 20973143]; NFFTBS [J0630429]zh_CN
dc.language.isoenzh_CN
dc.publisherAMER CHEMICAL SOCzh_CN
dc.titleWhen the Signal Is Not from the Original Molecule To Be Detected: Chemical Transformation of para-Aminothiophenol on Ag during the SERS Measurementzh_CN
dc.typeArticlezh_CN


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