Imperial College London
Portrait Picture

ProfessorJohannesLischner

Faculty of Engineering, Department of Materials

Professor of Theory and Simulation of Materials
 
 
 
//

Contact

 

+44 (0)20 7594 9949j.lischner

 
 
//

Location

 

342Bessemer BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Lischner:2018:10.1021/acs.jpcc.8b00651,
author = {Lischner, JC and Dal, Forno S and Ranno, L},
doi = {10.1021/acs.jpcc.8b00651},
journal = {The Journal of Physical Chemistry Part C: Nanomaterials and Interfaces},
pages = {8517--8527},
title = {Material, size and environment dependence of plasmon-induced hot carriers in metallic nanoparticles},
url = {http://dx.doi.org/10.1021/acs.jpcc.8b00651},
volume = {122},
year = {2018}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Harnessing hot electrons and holes resulting from the decay of localized surface plasmons in nanomaterials has recently led to new devices for photovoltaics, photocatalysis, and optoelectronics. Properties of hot carriers are highly tunable, and in this work, we investigate their dependence on the material, size, and environment of spherical metallic nanoparticles. In particular, we carry out theoretical calculations of hot carrier generation rates and energy distributions for six different plasmonic materials (Na, K, Al, Cu, Ag, and Au). The plasmon decay into hot electron–hole pairs is described via Fermi’s golden rule using the quasistatic approximation for optical properties and a spherical well potential for the electronic structure. We present results for nanoparticles with diameters up to 40 nm, which are embedded in different dielectric media. We find that small nanoparticles with diameters of 16 nm or less in media with large dielectric constants produce most hot carriers. Among the different materials, Na, K, and Au generate most hot carriers. We also investigate hot carrier-induced water splitting and find that simple-metal nanoparticles are useful for initiating the hydrogen evolution reaction, whereas transition-metal nanoparticles produce dominantly holes for the oxygen evolution reaction.
AU  - Lischner,JC
AU  - Dal,Forno S
AU  - Ranno,L
DO  - 10.1021/acs.jpcc.8b00651
EP  - 8527
PY  - 2018///
SN  - 1932-7447
SP  - 8517
TI  - Material, size and environment dependence of plasmon-induced hot carriers in metallic nanoparticles
T2  - The Journal of Physical Chemistry Part C: Nanomaterials and Interfaces
UR  - http://dx.doi.org/10.1021/acs.jpcc.8b00651
UR  - http://hdl.handle.net/10044/1/58447
VL  - 122
ER  -
Download