Influence of surface plasmon resonance on the emission intermittency of photoluminescence from gold nano-sea-urchins.
The effect of surface plasmon resonance (SPR) on the blinking emission of photoluminescence from noble metal nanostructures still requires further investigation in quantum mechanics and limits their applications. We investigate one photon luminescent emission intermittency of noble metal nanostructures with differently sized sea-urchin-shaped nanoparticles, known as nano-sea-urchins (NSUs). The probability of the "on" process in one photon luminescent emission intermittency of NSUs increases due to the strong electric field of SPR. This mechanism is explained by the reaction potential threshold model we propose here. Furthermore, the ameliorated photoluminescence of NSUs is strong enough to excite waterweed bioluminescence and can act as an in vivo bio-light emitting device, which has potential applications in cytotoxicity, bio-imaging and bio-labeling.
Su
Yen Hsun
YH
Research Center for Applied Sciences, Academia Sinica, Taipei, 115, Taiwan. kistic@mail.mse.ncku.edu.tw
Tu
Sheng-Lung
SL
Tseng
Shih-Wen
SW
Chang
Yun-Chorng
YC
Chang
Shih-Hui
SH
Zhang
Wei-Min
WM
D000818:Animals; D034681:Bacopa / Q000737:chemistry; D002734:Chlorophyll / Q000737:chemistry; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry; D049329:Nanostructures / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D012617:Sea Urchins / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D020349:Surface Plasmon Resonance; D013816:Thermodynamics
D002734:Chlorophyll; D006046:Gold