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Vibrational Activity Change of Self-Assembled Monolayers upon Chemical Attachment and Nanoscale Block Revealed by Surface Enhanced Raman Spectroscopy
被引:0
|作者:
Zhou Jie
[1
]
Li Bo-Lin
[2
]
Zhu Pei-Zhi
[3
]
Lu Xiao-Lin
[1
,2
]
机构:
[1] Zhejiang Sci Tech Univ, Dept Chem, Educ Minist, Key Lab Adv Text Mat & Mfg Technol, Hangzhou 310018, Zhejiang, Peoples R China
[2] Southeast Univ, Sch Biol Sci & Med Engn, State Key Lab Bioelect, Nanjing 210096, Peoples R China
[3] Yangzhou Univ, Coll Chem & Engn, Yangzhou 225009, Jiangsu, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Surface-enhanced raman scattering;
High-order effect;
Symmetry change;
1,4-Benzenedithiol;
Silver nanoparticle;
SILVER ELECTRODE;
SCATTERING;
MOLECULES;
NANOPARTICLES;
GOLD;
1,4-BENZENEDITHIOL;
ADSORPTION;
SERS;
D O I:
10.3866/PKU.WHXB201312273
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
The origin of weak ambiguous vibrational modes in surface enhanced Raman scattering (SERS), i.e., from the high-order effect or symmetry change using 1,4-benzenedithiol (BDT) as a probe, is investigated. Weak ambiguous vibrational modes are caused by symmetry change rather than high-order effect. The experimental method can be extended, e.g., to similar systems excited by lasers with different wavelengths, or microelectronic junctions bridged by organic molecules.
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页码:623 / 627
页数:5
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