Bounds on quantum confinement effects in metal nanoparticles
Mesoscale and Nanoscale Physics
2018-04-04 v3 Optics
Abstract
Quantum size effects on the permittivity of metal nanoparticles are investigated using the quantum box model. Explicit upper and lower bounds are derived for the permittivity and relaxation rates due to quantum confinement effects. These bounds are verified numerically, and the size-dependence and frequency-dependence of the empirical Drude size parameter is extracted from the model. Results suggest that the common practice of empirically modifying the dielectric function can lead to inaccurate predictions for highly uniform distributions of finite-sized particles.
Keywords
Cite
@article{arxiv.1706.06747,
title = {Bounds on quantum confinement effects in metal nanoparticles},
author = {G. Neal Blackman and Dentcho A. Genov},
journal= {arXiv preprint arXiv:1706.06747},
year = {2018}
}
Comments
11 pages, 6 figures