Optical sensing through wide delocalised macrocycles by SPR technique

摘要

Surface Plasmon Resonance (SPR) technique has been utilised to investigate the effects of the interaction between nitrogen dioxide and thin films of delocalised macromolecules of copper-phthalocyanine (CuPc) deposited onto silver by Langmuir-Blodgett (LB) method. The resulting shifts of the SPR spectrum have been monitored as a function of the incident angle. A fitting technique of experimental resonance curves for CuPc/Ag/glass system has been executed using an optimisation routine and it has given the responses versus NO_2 as variations of real and imaginary parts of CuPc optical constants.