Surface enhanced resonance Raman scattering of the perylene chromophore |
| |
Institution: | 1. State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China;2. University of the Chinese Academy of Sciences, Beijing 100049, China |
| |
Abstract: | Vibrational fundamentals, overtones and combination bands of the perylene chromophore, in the N-hexyl-3, 4:9,10-perylenetetracarboxylic diimide (HPTCNH) and other perylene tetracarboxylic derivatives, have been observed using surface enhanced resonance Raman scattering (SERRS) of Langmuir—Blodgett (LB) monolayers on Ag island films. Typical vibrational progressions due to the Franck—Condon (A-term) were seen. The results showed that the mechanism of the RRS effect was not altered by the metal surface, although the RRS signal was enhanced by four orders of magnitude. Polarization properties of the SERRS signal were studied for LB monolayers on a series of SERS active substrates. A frequency dependence of the depolarization ratios was observed. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|