An Analytical Quantum Model to Calculate Fluorescence Enhancement of a Molecule in Vicinity of a Sub-10 nm Metal Nanoparticle

作者：Bagheri Zahra; Massudi Reza^*

来源：Applied Spectroscopy, 2017, 71(5): 963-969.

DOI：10.1177/0003702816653127

• Quantum plasmonics particle
• molecule
• nanoparticle interaction
• drude model
• analytical quantum model

An analytical quantum model is used to calculate electrical permittivity of a metal nanoparticle located in an adjacent molecule. Different parameters, such as radiative and non-radiative decay rates, quantum yield, electrical field enhancement factor, and fluorescence enhancement are calculated by such a model and they are compared with those obtained by using the classical Drude model. It is observed that using an analytical quantum model presents a higher enhancement factor, up to 30%, as compared to classical model for nanoparticles smaller than 10 nm. Furthermore, the results are in better agreement with those experimentally realized.

• 出版日期2017-5