Magnetic field dependence of singlet oxygen generation by nanoporous silicon

Jamaree Amonkosolpan; G N Aliev; D Wolverson; P A Snow; J J Davies

doi:10.1186/1556-276X-9-342

Magnetic field dependence of singlet oxygen generation by nanoporous silicon

Jamaree Amonkosolpan, G N Aliev, D Wolverson, P A Snow, J J Davies

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Abstract

Energy transfer from photoexcited excitons localized in silicon nanoparticles to adsorbed oxygen molecules excites them to the reactive singlet spin state. This process has been studied experimentally as a function of nanoparticle size and applied external magnetic field as a test of the accepted understanding of this process in terms of the exchange coupling between the nano-Si exciton and the adsorbed O2 molecules.

Original language	English
Article number	342
Pages (from-to)	1-7
Number of pages	7
Journal	Nanoscale Research Letters
Volume	9
Early online date	9 Jul 2014
DOIs	https://doi.org/10.1186/1556-276X-9-342
Publication status	Published - 31 Jul 2014

Keywords

Singlet oxygen
porous silicon
photoluminescence
energy transfer

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10.1186/1556-276X-9-342Licence: CC BY

1 Finished

Spin-Dependent Phenomena Mediated by Silicon Nanocrystal Assemblies
Wolverson, D. & Snow, P.
Engineering and Physical Sciences Research Council
3/01/12 → 2/04/15
Project: Research council

Paul Snow
- P.A.Snowbath.acuk
- Department of Physics - Senior Lecturer
- Centre for Nanoscience and Nanotechnology
- Condensed Matter Physics CDT
Person: Research & Teaching, Teaching & Other
Daniel Wolverson
- D.Wolversonbath.acuk
Person: Research & Teaching

Cite this

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title = "Magnetic field dependence of singlet oxygen generation by nanoporous silicon",

abstract = "Energy transfer from photoexcited excitons localized in silicon nanoparticles to adsorbed oxygen molecules excites them to the reactive singlet spin state. This process has been studied experimentally as a function of nanoparticle size and applied external magnetic field as a test of the accepted understanding of this process in terms of the exchange coupling between the nano-Si exciton and the adsorbed O2 molecules.",

keywords = "Singlet oxygen, porous silicon, photoluminescence, energy transfer",

author = "Jamaree Amonkosolpan and Aliev, {G N} and D Wolverson and Snow, {P A} and Davies, {J J}",

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AU - Amonkosolpan, Jamaree

AU - Aliev, G N

AU - Wolverson, D

AU - Snow, P A

AU - Davies, J J

PY - 2014/7/31

Y1 - 2014/7/31

N2 - Energy transfer from photoexcited excitons localized in silicon nanoparticles to adsorbed oxygen molecules excites them to the reactive singlet spin state. This process has been studied experimentally as a function of nanoparticle size and applied external magnetic field as a test of the accepted understanding of this process in terms of the exchange coupling between the nano-Si exciton and the adsorbed O2 molecules.

AB - Energy transfer from photoexcited excitons localized in silicon nanoparticles to adsorbed oxygen molecules excites them to the reactive singlet spin state. This process has been studied experimentally as a function of nanoparticle size and applied external magnetic field as a test of the accepted understanding of this process in terms of the exchange coupling between the nano-Si exciton and the adsorbed O2 molecules.

KW - Singlet oxygen

KW - porous silicon

KW - photoluminescence

KW - energy transfer

U2 - 10.1186/1556-276X-9-342

DO - 10.1186/1556-276X-9-342

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SP - 1

EP - 7

JO - Nanoscale Research Letters

JF - Nanoscale Research Letters

M1 - 342

ER -

Magnetic field dependence of singlet oxygen generation by nanoporous silicon

Abstract

Keywords

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Projects

Spin-Dependent Phenomena Mediated by Silicon Nanocrystal Assemblies

Profiles

Paul Snow

Daniel Wolverson

Cite this