Improving Upconversion Efficiency by Photon Management in Self-Assembled Core/Shell Nanocrystal Films

Harish Lakhotiya; Søren Peder Madsen; Søren Roesgaard Nielsen; Joakim Vester-Petersen; Bo Brummerstedt Iversen; Peter Balling; Brian Julsgaard

doi:10.1021/acs.jpcc.0c05179

Improving Upconversion Efficiency by Photon Management in Self-Assembled Core/Shell Nanocrystal Films

Harish Lakhotiya, Søren Peder Madsen, Søren Roesgaard Nielsen, Joakim Vester-Petersen, Bo Brummerstedt Iversen, Peter Balling, Brian Julsgaard^*

^*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review

4 Citationer (Scopus)

Abstract

We present the synthesis of Er-doped NaYF4/NaLuF4 core/shell nanocrystal films, which enable optical upconversion of photons from a wavelength of 1500 nm into photons of a wavelength of 980 nm. Combining such films with specially tailored Au nanostructures and a Au back-reflector, it is demonstrated that the upconversion luminescence yield can be enhanced up to 31 ± 3 times and that the performance of the upconverting layer can be modeled well for a broad range of excitation conditions. In particular, the analysis shows that the performance of the Au structures corresponds to a solar concentration factor of 4.1 ± 0.6. The relevance of the results for improving the performance of crystalline silicon solar cells is discussed.

Originalsprog	Engelsk
Tidsskrift	The Journal of Physical Chemistry Part C
Vol/bind	124
Nummer	41
Sider (fra-til)	22357–22365
Antal sider	9
ISSN	1932-7447
DOI	https://doi.org/10.1021/acs.jpcc.0c05179
Status	Udgivet - 15 okt. 2020

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10.1021/acs.jpcc.0c05179

https://pubs.acs.org/doi/abs/10.1021/acs.jpcc.0c05179

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title = "Improving Upconversion Efficiency by Photon Management in Self-Assembled Core/Shell Nanocrystal Films",

abstract = "We present the synthesis of Er-doped NaYF4/NaLuF4 core/shell nanocrystal films, which enable optical upconversion of photons from a wavelength of 1500 nm into photons of a wavelength of 980 nm. Combining such films with specially tailored Au nanostructures and a Au back-reflector, it is demonstrated that the upconversion luminescence yield can be enhanced up to 31 ± 3 times and that the performance of the upconverting layer can be modeled well for a broad range of excitation conditions. In particular, the analysis shows that the performance of the Au structures corresponds to a solar concentration factor of 4.1 ± 0.6. The relevance of the results for improving the performance of crystalline silicon solar cells is discussed.",

author = "Harish Lakhotiya and Madsen, {S{\o}ren Peder} and Nielsen, {S{\o}ren Roesgaard} and Joakim Vester-Petersen and Iversen, {Bo Brummerstedt} and Peter Balling and Brian Julsgaard",

year = "2020",

month = oct,

day = "15",

doi = "10.1021/acs.jpcc.0c05179",

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journal = "The Journal of Physical Chemistry Part C",

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publisher = "American Chemical Society",

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Improving Upconversion Efficiency by Photon Management in Self-Assembled Core/Shell Nanocrystal Films. / Lakhotiya, Harish; Madsen, Søren Peder; Nielsen, Søren Roesgaard et al.
I: The Journal of Physical Chemistry Part C, Bind 124, Nr. 41, 15.10.2020, s. 22357–22365.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review

TY - JOUR

T1 - Improving Upconversion Efficiency by Photon Management in Self-Assembled Core/Shell Nanocrystal Films

AU - Lakhotiya, Harish

AU - Madsen, Søren Peder

AU - Nielsen, Søren Roesgaard

AU - Vester-Petersen, Joakim

AU - Iversen, Bo Brummerstedt

AU - Balling, Peter

AU - Julsgaard, Brian

PY - 2020/10/15

Y1 - 2020/10/15

N2 - We present the synthesis of Er-doped NaYF4/NaLuF4 core/shell nanocrystal films, which enable optical upconversion of photons from a wavelength of 1500 nm into photons of a wavelength of 980 nm. Combining such films with specially tailored Au nanostructures and a Au back-reflector, it is demonstrated that the upconversion luminescence yield can be enhanced up to 31 ± 3 times and that the performance of the upconverting layer can be modeled well for a broad range of excitation conditions. In particular, the analysis shows that the performance of the Au structures corresponds to a solar concentration factor of 4.1 ± 0.6. The relevance of the results for improving the performance of crystalline silicon solar cells is discussed.

AB - We present the synthesis of Er-doped NaYF4/NaLuF4 core/shell nanocrystal films, which enable optical upconversion of photons from a wavelength of 1500 nm into photons of a wavelength of 980 nm. Combining such films with specially tailored Au nanostructures and a Au back-reflector, it is demonstrated that the upconversion luminescence yield can be enhanced up to 31 ± 3 times and that the performance of the upconverting layer can be modeled well for a broad range of excitation conditions. In particular, the analysis shows that the performance of the Au structures corresponds to a solar concentration factor of 4.1 ± 0.6. The relevance of the results for improving the performance of crystalline silicon solar cells is discussed.

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U2 - 10.1021/acs.jpcc.0c05179

DO - 10.1021/acs.jpcc.0c05179

M3 - Journal article

SN - 1932-7447

VL - 124

SP - 22357

EP - 22365

JO - The Journal of Physical Chemistry Part C

JF - The Journal of Physical Chemistry Part C

IS - 41

ER -

Improving Upconversion Efficiency by Photon Management in Self-Assembled Core/Shell Nanocrystal Films

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