NOGUCHI Yutaka
   Department   Undergraduate School  , School of Science and Technology
   Position   Professor
Language English
Publication Date 2021/06
Type Academic Journal
Peer Review Peer reviewed
Title Effect of chemically induced permittivity changes on the plasmonic properties of metal nanoparticles
Contribution Type Co-authored (other than first author)
Journal Communications Materials
Journal TypeAnother Country
Publisher Springer Nature
Volume, Issue, Page 2(54),pp.1-8
Total page number 8
Author and coauthor Noboru Saito, Sou Ryuzaki, Yuta Tsuji, Yutaka Noguchi, Rintaro Matsuda, Pangpang Wang, Daisuke Tanaka, Yusuke Arima, Koichi Okamoto, Kazunari Yoshizawa, Kaoru Tamada
Details We report mechanisms of the chemically induced change in the electronic state at the metal-ligand interface of silver nanoparticles due to the ligand molecules, and the effect of this change on the plasmonic properties of those nanoparticles. It was found that changes in the electron density of states at the metal-ligand interface cause alterations in the induced and permanent dipole moments, and eventually to the permittivity at the interface, when the wave function near the Fermi level is localized at the interface. These alterations play a key role in determining the plasmonic properties of silver nanoparticles.
DOI https://doi.org/10.1038/s43246-021-00159-6