Enhancing plasmonic hot-carrier generation by strong coupling of multiple resonant modes

Nanoscale ◽  
2021 ◽  
Author(s):  
Yat Lam Wong ◽  
Huaping Jia ◽  
Aoqun Jian ◽  
Dangyuan Lei ◽  
Abdel Illah EL ABED ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Visible Light ◽  
Strong Coupling ◽  
Hot Carriers ◽  
Carrier Generation ◽  
Hot Carrier ◽  
Intensive Research ◽  
Short Lifetime ◽  
Resonant Modes

Plasmon-induced hot carriers have recently attracted intensive research, but the energy efficiency in the visible light is often low due to the short lifetime of hot carriers and the limited...

scholarly journals Hot carriers generated by plasmons: where are they generated and where do they go from there?

2019 ◽  
Vol 214 ◽  
pp. 35-58 ◽  
Author(s):  
Jacob B. Khurgin
Keyword(s):  
Unified Theory ◽  
Hot Carriers ◽  
Carrier Generation ◽  
Hot Carrier

A physically transparent unified theory of optically- and plasmon-induced hot carrier generation in metals is developed with all of the relevant mechanisms included.

scholarly journals Hot Carriers: Plasmonic Au/TiO2 -Dumbbell-On-Film Nanocavities for High-Efficiency Hot-Carrier Generation and Extraction (Adv. Funct. Mater. 34/2018)

2018 ◽  
Vol 28 (34) ◽  
pp. 1870235
Author(s):  
Kwun Hei Willis Ho ◽  
Aixue Shang ◽  
Fenghua Shi ◽  
Tsz Wing Lo ◽  
Pui Hong Yeung ◽  
...  
Keyword(s):  
High Efficiency ◽  
Hot Carriers ◽  
Carrier Generation ◽  
Hot Carrier

Energy-tunable photocatalysis by hot carriers generated by surface plasmon polaritons

2019 ◽  
Vol 7 (12) ◽  
pp. 7015-7024 ◽  
Author(s):  
Wonmi Ahn ◽  
Igor Vurgaftman ◽  
Jeremy J. Pietron ◽  
Pehr E. Pehrsson ◽  
Blake S. Simpkins
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Metal Film ◽  
Surface Plasmon Polariton ◽  
Bare Metal ◽  
Hot Carriers ◽  
Carrier Generation ◽  
Hot Carrier ◽  
Plasmon Polariton ◽  
Plasmon Polaritons

Hot carrier generation by surface plasmon polariton was demonstrated in a metal/semiconductor heterofilm and a bare metal film for energy-tunable photocatalysis.

scholarly journals Hot-carriers in organic photovoltaics

2021 ◽  
Vol 93 (2) ◽  
pp. 223-230
Author(s):  
Palas Roy
Keyword(s):  
Organic Photovoltaics ◽  
Excess Energy ◽  
Charge Carriers ◽  
Hot Carriers ◽  
Hot Carrier ◽  
Improve Efficiency ◽  
Coulombic Attraction ◽  
Carrier Escape

Abstract Photogenerated charge carriers in organic photovoltaics (OPVs) suffer relaxation and recombination losses. However, extracting these carriers at higher energy (‘Hot-carriers’) has been found to be effective to overcome such loss pathways and improve efficiency of OPVs. Excess energy and long delocalization length promotes hot-carrier escape from Coulombic attraction and dissociation into free charges. Here, I have reviewed the ways to generate hot-carriers and their extraction in organic backbones. In-depth understanding of their energetics and dynamics will help designing hot-carrier photovoltaics.

Hot-carrier generation in submicrometer VLSI environment

1986 ◽  
Vol 21 (1) ◽  
pp. 187-192 ◽  
Author(s):  
T. Sakurai ◽  
K. Nogami ◽  
M. Kakumu ◽  
T. Iizuka
Keyword(s):  
Carrier Generation ◽  
Hot Carrier

Determining plasmonic hot-carrier energy distributions via single-molecule transport measurements

Science ◽  
2020 ◽  
pp. eabb3457 ◽  
Author(s):  
Harsha Reddy ◽  
Kun Wang ◽  
Zhaxylyk Kudyshev ◽  
Linxiao Zhu ◽  
Shen Yan ◽  
...  
Keyword(s):  
Single Molecule ◽  
Plasmonic Nanostructures ◽  
Hot Carriers ◽  
Energy Distributions ◽  
Nanoscale Systems ◽  
Hot Carrier ◽  
Transport Measurements ◽  
Single Molecule Junctions ◽  
Molecule Transport ◽  
Carrier Energy

Hot-carriers in plasmonic nanostructures, generated via plasmon decay, play key roles in applications like photocatalysis and in photodetectors that circumvent band-gap limitations. However, direct experimental quantification of steady-state energy distributions of hot-carriers in nanostructures has so far been lacking. We present transport measurements from single-molecule junctions, created by trapping suitably chosen single molecules between an ultra-thin gold film supporting surface plasmon polaritons and a scanning probe tip, that can provide quantification of plasmonic hot-carrier distributions. Our results show that Landau damping is the dominant physical mechanism of hot-carrier generation in nanoscale systems with strong confinement. The technique developed in this work will enable quantification of plasmonic hot-carrier distributions in nanophotonic and plasmonic devices.

Plasmonic Au/TiO2 -Dumbbell-On-Film Nanocavities for High-Efficiency Hot-Carrier Generation and Extraction

2018 ◽  
Vol 28 (34) ◽  
pp. 1800383 ◽  
Author(s):  
Kwun Hei Willis Ho ◽  
Aixue Shang ◽  
Fenghua Shi ◽  
Tsz Wing Lo ◽  
Pui Hong Yeung ◽  
...  
Keyword(s):  
High Efficiency ◽  
Carrier Generation ◽  
Hot Carrier
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