Title :
Adsorption orientation of methylene blue (MB+) on the silver colloid: SERS and DFT studies
Author :
Zhong, Liang ; Hu, Yongjun ; Xing, Da
Author_Institution :
MOE Key Lab. of Laser Life Sci., South China Normal Univ., Guangzhou, China
Abstract :
By combining SERS experiments with DFT calculations, the orientation of methylene blue (MB+) absorbed on the silver colloid at different concentrations are discussed. The results indicate MB+ adopts a parallel fashion at low concentration while a perpendicular one at high concentration.
Keywords :
adsorbed layers; adsorption; colloids; density functional theory; organic compounds; silver; surface enhanced Raman scattering; Ag; DFT calculations; MB+ adsorption orientation; SERS; absorbed methylene blue; silver colloid; Chemistry; Density functional theory; Laser theory; Microscopy; Packaging; Polarization; Raman scattering; Silver; Spectroscopy; DFT; Methylene Blue; SERS; silver colloid;
Conference_Titel :
Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics, 2009. CLEO/PACIFIC RIM '09. Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-3829-7
Electronic_ISBN :
978-1-4244-3830-3
DOI :
10.1109/CLEOPR.2009.5292661
