Journal
NATURE PHOTONICS
Volume 9, Issue 9, Pages 601-+Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/NPHOTON.2015.142
Keywords
-
Categories
Funding
- National Science Foundation (NSF) [CBET-1233795, 1102689, EPS 1003907]
- Army Research Laboratory [W911NF-14-2-0116]
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [1233795] Funding Source: National Science Foundation
- Division Of Graduate Education
- Direct For Education and Human Resources [1102689] Funding Source: National Science Foundation
Ask authors/readers for more resources
In Forster resonance energy transfer (FRET), energy non-radiatively transfers from a blue-shifted emitter to a red-shifted absorber by dipole-dipole coupling. This study shows that plasmonics enables the opposite transfer direction, transferring the plasmonic energy towards the short-wavelength direction to induce charge separation in a semiconductor. Plasmon-induced resonance energy transfer (PIRET) differs from FRET because of the lack of a Stoke's shift, non-local absorption effects and a strong dependence on the plasmon's dephasing rate and dipole moment. PIRET non-radiatively transfers energy through an insulating spacer layer, which prevents interfacial charge recombination losses and dephasing of the plasmon from hot-electron transfer. The distance dependence of dipole-dipole coupling is mapped out for a range of detuning across the plasmon resonance. PIRET can efficiently harvest visible and near-infrared sunlight with energy below the semiconductor band edge to help overcome the constraints of band-edge energetics for single semiconductors in photoelectrochemical cells, photocatalysts and photovoltaics.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available