[Synthesis and SERS characterization of silver nanocubes].
Silver nanocubes were synthesized by reducing silver nitrate with ethylene glycol in the presence of poly(vinyl pyrrolidone) based on the report by Xia's group. Silver nanocubes were immobilized on silicon wafers by self-assembly processes. SERS activity of silver nanocubes was detected by using pyridine and SCN- respectively as probe molecules. The preliminary results show that the Raman intensities of pyridine and SCN- adsorbed at silver nanocubes were enhanced considerably, indicating that silver nanocubes can be used as a good SERS substrate. On the other hand, SERS combined with the probe molecule method can be used to characterize the optical property of silver nanocubes.
Zhou
Hai-hui
HH
Department of Chemistry, State Key Laboratory for Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen China.
Wu
De-yin
DY
Hu
Jian-qiang
JQ
Tian
Zhong-qun
ZQ
D019855:Ethylene Glycol / Q000737:chemistry; D017879:Isothiocyanates / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D011205:Povidone / Q000737:chemistry; D011725:Pyridines / Q000737:chemistry; D012834:Silver / Q000737:chemistry*; D018030:Silver Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D012835:Silver Nitrate / Q000737:chemistry; D013059:Spectrum Analysis, Raman / Q000295:instrumentation / Q000379:methods*; D013499:Surface Properties
D017879:Isothiocyanates; D011725:Pyridines; D018030:Silver Compounds; C037152:isothiocyanic acid; D012834:Silver; D012835:Silver Nitrate; D019855:Ethylene Glycol; D011205:Povidone; C023666:pyridine