Publication Date
2020
Journal or Book Title
The Journal of Chemical Physics
Abstract
In plasmonic metals, surface plasmon resonance decays and generates hot electrons and hot holes through non-radiative Landau damping. These hot carriers are highly energetic, which can be modulated by the plasmonic material, size, shape, and surrounding dielectric medium. A plasmonic metal nanostructure, which can absorb incident light in an extended spectral range and transfer the absorbed light energy to adjacent molecules or semiconductors, functions as a “plasmonic photosensitizer.” This article deals with the generation, emission, transfer, and energetics of plasmonic hot carriers. It also describes the mechanisms of hot electron transfer from the plasmonic metal to the surface adsorbates or to the adjacent semiconductors. In addition, this article highlights the applications of plasmonic hot electrons in photodetectors, photocatalysts, photoelectrochemical cells, photovoltaics, biosensors, and chemical sensors. It discusses the applications and the design principles of plasmonic materials and devices.
DOI
https://doi.org/10.1063/5.0005334
Volume
152
Issue
22
License
UMass Amherst Open Access Policy
Recommended Citation
Tang, Haibin; Chen, Chih-Jung; Huang, Zhulin; Bright, Joseph; Meng, Guowen; Liu, Ru-Shi; and Wu, Nianqiang, "Plasmonic hot electrons for sensing, photodetection, and solar energy applications: A perspective" (2020). The Journal of Chemical Physics. 894.
https://doi.org/10.1063/5.0005334