Surface Enhanced Raman Scattering Spectra of Carbozole and Azobenzene Disperse Red Polymer
WANG Xiu-ru1,SUN Run-guang1*,WANG Chang-shun2, 3,MO Yu-jun3
1. School of Materials Science and Engineering, Shanghai University, Shanghai 201800, China 2. Department of Physics, Shanghai Jiaotong University, Shanghai 200030, China 3. Department of Physics, Henan University, Kaifeng 475001，China
Abstract：Surface enhanced resonance Raman scattering(SERRS) was employed to study the molecule alignment of carbozole and azobenzene disperse red polymer on the surface of rough silver thin film. According to the selection rule of optical transitions and experiment results, it was found that the surface geometry of carbozole and azobenzene disperse red polymer was: this was physical adsorption between the carbazole group, which is from the monomer of carbazole and nitro-group which is from the monomer of azobenzene on the surface of rough silver film, and there is almost no interaction between the principal chain and the substrate because of the distance. This geometrical configuration of CAP on the surface of the substrate was proposed to damage the stabilities and efficiency of azobenzene derivatives based optical storage devices.
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