摘要
We present a technique for fabricating a fluorescence enhancement device composed of metal nanoparticles(NPs) and porous silicon(PSi) diffraction grating.The fluorescence emission enhancement properties of the PSi and the fluorescence enhancement of the probe molecules are studied on PSi gratings.The fluorescence enhancement of the probe molecules on a fluorescence enhancement device is further improved through the deposition of metal NPs onto the PSi grating.In comparison to metal NP/PSi devices,metal NP periodic distributions can produce a stronger fluorescence enhancement that couples with the PSi grating fluorescence enhancement to achieve an overall three-fold enhancement of the fluorescence intensity.
We present a technique for fabricating a fluorescence enhancement device composed of metal nanoparticles(NPs) and porous silicon(PSi) diffraction grating.The fluorescence emission enhancement properties of the PSi and the fluorescence enhancement of the probe molecules are studied on PSi gratings.The fluorescence enhancement of the probe molecules on a fluorescence enhancement device is further improved through the deposition of metal NPs onto the PSi grating.In comparison to metal NP/PSi devices,metal NP periodic distributions can produce a stronger fluorescence enhancement that couples with the PSi grating fluorescence enhancement to achieve an overall three-fold enhancement of the fluorescence intensity.
基金
supported by the National Natural Science Foundation of China under Grant Nos.61575168 and 61665012
关键词
GRATING
fabricating
RHODAMINE
porous
BOILING
metallic
SILVER
adsorbed
stronger
EVAPORATION
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