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.

hydride formation

shape

distributions

au

Hydrogen

iles sm

particles

p7983

physical review b

pd

heterodimers

Nanoplasmonic sensors

Ostwald ripening

size

Science & Technology - Other Topics

model

Charge transfer

Supportedmetal nanoparticles

nanoantennas

v33

1986

Physics

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 (2010-2017)

Subject Categories

Physical Sciences

Nano Technology

Roots

Basic sciences

DOI

10.1016/j.physe.2016.10.023

More information

Created

10/8/2017