Influence of surface plasmon resonance on the emission intermittency of photoluminescence from gold nano-sea-urchins

Abstract

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.

Preparation, optical characterization and stability of gold nanoparticles by facile methods

“…Therefore, lower absorption it's related to a low concentration of gold nanoparticles. On the other hand, according to Mie, the oscillation modes depend on the particle size and as the size decreases, the maximum absorption decreases [19,20] and shifts to the blue [21][22][23][24]. As the size of the nanoparticles increases, the mean free path of the electrons is enhanced, therefore, an increase in absorbance is expected [25][26][27].…”

Surface plasmon resonance of layer-by-layer gold nanoparticles induced photoelectric current in environmentally-friendly plasmon-sensitized solar cell

“…[1][2][3][4][5][6] Surface plasmon resonance produces a stronger electromagnetic field on the surface of gold nanoparticles and has been applied to the enhancement of Raman scattering, 7 photoluminescence, 8 biolight emission devices 9 and solar cells. 10 Recently, surface plasmon resonance of noble metals has been used to separate charges on TiO 2 films to form negative potential changes and anodic currents under visible light radiation, 3,[11][12][13][14] which will potentially be able to facilitate the promising application of plasmon-sensitized solar cells and plasmonic solar cells in the future.…”

Performance enhancement of natural pigments on a high light transmission ZrO2nanoparticle layer in a water-based dye-sensitized solar cell

“…The absorption spectra of 50 g/L of natural pigments in alcohol are presented in Figure 5. The absorption peaks at 465 and 665 nm result from the Soret band (B) and Q band absorption of chlorophyll a, respectively [25][26][27][28][29]. The green part of Codiaeum varie, red part of Aglaonema, and green part of Aglaonema are rich in chlorophyll a.…”