| Summary: | 碩士 === 國立臺灣海洋大學 === 光電科學研究所 === 106 === The annealed silver nanoparticles have been grown on hyperbolic metamaterial (HMM) by Multi-targets co-sputter system and Thermal coater, afterwards, surface morphology of the sample has been observed by Atomic Force Microscope (AFM) and then structural integrity and film uniformity of the sample have been investigated by Scanning Electron Microscope (SEM).
In addition, the light absorption band of the structure is confirmed by spectrometer, and the influences of the silver particle sizes by different annealing temperatures to the Surface Enhanced Raman Spectroscopy (SERS) have been investigated. Photoluminescence (PL) and time-resolved photoluminescence (TRPL) have been measured after the thermal deposition of fluorescent dye on sample.
The results show that annealed silver particles with fluorescent dye Alq3 on HMM can enhance the PL intensity by 12.23 times and reduce the PL life time by 32%, compared with fluorescent dye Alq3 on silicon substrate.
Here we prove that surface plasmon resonance between hyperbolic metamaterial and silver nanoparticles can effectively increase the oscillatory intensity of the fluorescent molecules, the PL intensity and shorten the PL lifetime.
|
|---|
