Charge transfer between sensing and targeted metal nanoparticles in indirect nanoplasmonic sensors
Journal article, 2017

In indirect nanoplasmonic sensors, the plasmonic metal nanoparticles are adjacent to the material of interest, and the material-related changes of their optical properties are used to probe that material. If the latter itself represents another metal in the form of nanoparticles, its deposition is accompanied by charge transfer to or from the plasmonic nanoparticles in order to equalize the Fermi levels. We estimate the value of the transferred charge and show on the two examples, nanoparticle sintering and hydride formation, that the charge transfer has negligible influence on the probed processes, because the effect of charge transfer is less important than that of nanoparticle surface energy. This further corroborates the non-invasive nature of nanoplasmonic sensors.

Nanoplasmonic sensors

Ostwald ripening

hydride formation

Charge transfer

shape

model

physical review b

Science & Technology - Other Topics

Hydrogen

v33

distributions

au

iles sm

p7983

size

Supportedmetal nanoparticles

Physics

nanoantennas

pd

1986

heterodimers

particles

Author

Vladimir Zhdanov

Chalmers, Physics, Chemical Physics

Christoph Langhammer

Chalmers, Physics, Chemical Physics

Physica E: Low-Dimensional Systems and Nanostructures

1386-9477 (ISSN)

Vol. 87 205-208

Areas of Advance

Nanoscience and Nanotechnology (SO 2010-2017, EI 2018-)

Roots

Basic sciences

Subject Categories

Other Physics Topics

Nano Technology

DOI

10.1016/j.physe.2016.10.023

More information

Latest update

4/5/2022 1