Observation of oxygen dimers via energy transfer from silicon nanoparticles

Publication abstract:
Energy transfer from photo-excited excitons confined in silicon nanoparticles to oxygen dimers adsorbed on the nanoparticle surfaces is studied as a function of temperature and magnetic field. Quenching features in the nanoparticle photoluminescence spectrum arise from energy transfer to the oxygen dimers with and without the emission of Si TO(Δ) phonons and, also, with and without the vibrational excitation of the dimers. The dependence of the quenching on magnetic field shows that energy transfer is fast when a dimer is present, allowing an estimate of the proportion of the nanoparticles with adsorbed dimers.

This dataset contains raw data contributing to all figures in this publication.

Cite this dataset as:
Wolverson, D., 2015. Observation of oxygen dimers via energy transfer from silicon nanoparticles. Bath: University of Bath Research Data Archive. Available from: https://doi.org/10.15125/BATH-00119.

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Data

data_for_all_figures.zip
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See readme.txt for the naming convention of these files.

figure_1b_60K_data.DAT
text/plain (15kB)

figure_3a_all_fields.DAT
text/plain (75kB)

figure_1b_40K_data.DAT
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figure_1b_100K_data.DAT
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figure_1b_110K_data.DAT
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figure_1a_290K_data.DAT
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figure_1b_10K_data.DAT
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figure_1a_10K_data.DAT
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figure_1b_70K_data.DAT
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figure_2_main_data.DAT
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figure_1b_80K_data.DAT
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figure_3b_all_fields.DAT
text/plain (109kB)

figure_2_inset_data.DAT
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figure_1b_90K_data.DAT
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Creators

Daniel Wolverson
University of Bath

Contributors

GN Aliev
Project Member
University of Bath

J Amonkosolpan
Project Member
Srinakharinwirot University, Bangkok

University of Bath
Rights Holder

Documentation

Data collection method:

Full methodology is described in the associated publication. For a textbook introduction to the field, see M. J. Sailor "Porous Silicon in Practice", Wiley 2012.

Methodology link:

Aliev, G. N., Amonkosolpan, J., and Wolverson, D., 2016. Observation of oxygen dimers via energy transfer from silicon nanoparticles. Physical Chemistry Chemical Physics, 18(2), 690-693. Available from: https://doi.org/10.1039/c5cp04192a.

Documentation Files

readme.txt
text/plain (467B)

Funders

Engineering and Physical Sciences Research Council (EPSRC)
https://doi.org/10.13039/501100000266

Spin-dependent phenomena mediated by silicon nanocrystal assemblies
EP/J007552/1

Publication details

Publication date: 15 July 2015
by: University of Bath

Version: 1

DOI: https://doi.org/10.15125/BATH-00119

URL for this record: https://researchdata.bath.ac.uk/id/eprint/119

Contact information

Please contact the Research Data Service in the first instance for all matters concerning this item.

Contact person: Daniel Wolverson

Departments:

Faculty of Science
Physics