Strongly enhanced upconversion in trivalent erbium ions by tailored gold nanostructures: Toward high-efficient silicon-based photovoltaics

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Standard

Strongly enhanced upconversion in trivalent erbium ions by tailored gold nanostructures : Toward high-efficient silicon-based photovoltaics. / Christiansen, Jeppe; Vester-Petersen, Joakim; Nielsen, Søren Roesgaard; Møller, Søren; E. Christiansen, Rasmus; Sigmund, Ole; Madsen, Søren Peder; Balling, Peter; Julsgaard, Brian.

In: Solar Energy Materials and Solar Cells, Vol. 208, 110406, 05.2020.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Christiansen, J, Vester-Petersen, J, Nielsen, SR, Møller, S, E. Christiansen, R, Sigmund, O, Madsen, SP, Balling, P & Julsgaard, B 2020, 'Strongly enhanced upconversion in trivalent erbium ions by tailored gold nanostructures: Toward high-efficient silicon-based photovoltaics', Solar Energy Materials and Solar Cells, vol. 208, 110406. https://doi.org/10.1016/j.solmat.2020.110406

APA

Christiansen, J., Vester-Petersen, J., Nielsen, S. R., Møller, S., E. Christiansen, R., Sigmund, O., Madsen, S. P., Balling, P., & Julsgaard, B. (2020). Strongly enhanced upconversion in trivalent erbium ions by tailored gold nanostructures: Toward high-efficient silicon-based photovoltaics. Solar Energy Materials and Solar Cells, 208, [110406]. https://doi.org/10.1016/j.solmat.2020.110406

CBE

Christiansen J, Vester-Petersen J, Nielsen SR, Møller S, E. Christiansen R, Sigmund O, Madsen SP, Balling P, Julsgaard B. 2020. Strongly enhanced upconversion in trivalent erbium ions by tailored gold nanostructures: Toward high-efficient silicon-based photovoltaics. Solar Energy Materials and Solar Cells. 208:Article 110406. https://doi.org/10.1016/j.solmat.2020.110406

MLA

Vancouver

Christiansen J, Vester-Petersen J, Nielsen SR, Møller S, E. Christiansen R, Sigmund O et al. Strongly enhanced upconversion in trivalent erbium ions by tailored gold nanostructures: Toward high-efficient silicon-based photovoltaics. Solar Energy Materials and Solar Cells. 2020 May;208. 110406. https://doi.org/10.1016/j.solmat.2020.110406

Author

Christiansen, Jeppe ; Vester-Petersen, Joakim ; Nielsen, Søren Roesgaard ; Møller, Søren ; E. Christiansen, Rasmus ; Sigmund, Ole ; Madsen, Søren Peder ; Balling, Peter ; Julsgaard, Brian. / Strongly enhanced upconversion in trivalent erbium ions by tailored gold nanostructures : Toward high-efficient silicon-based photovoltaics. In: Solar Energy Materials and Solar Cells. 2020 ; Vol. 208.

Bibtex

@article{210f0e0e770d428aa2b27f7404b668e1,
title = "Strongly enhanced upconversion in trivalent erbium ions by tailored gold nanostructures: Toward high-efficient silicon-based photovoltaics",
abstract = "Upconversion of sub-band-gap photons constitutes a promising way for improving the efficiency of silicon-based solar cells beyond the Shockley-Queisser limit. 1500nm to 980nm upconversion by trivalent erbium ions is well-suited for this purpose, but the small absorption cross section hinders real-world applications. We employ tailored gold nanostructures to vastly improve the upconversion efficiency in erbium-doped TiO 2 thin films. The nanostructures are found using topology optimization and parameter optimization and fabricated by electron beam lithography. In qualitative agreement with a theoretical model, the samples show substantial electric-field enhancements inside the upconverting films for excitation at 1500nm for both s- and p-polarization under a wide range of incidence angles and excitation intensities. An unprecedented upconversion enhancement of 913±51 is observed at 1.7Wcm −2. We derive a semi-empirical expression for the photonically enhanced upconversion efficiency, valid for all excitation intensities. This allows us to determine the upconversion properties needed to achieve significant improvements in real-world solar-cell devices through photonic-enhanced upconversion. ",
keywords = "High-efficient photovoltaics, Photonic enhancement, Topology optimization, Upconversion of sub-band gap photons",
author = "Jeppe Christiansen and Joakim Vester-Petersen and Nielsen, {S{\o}ren Roesgaard} and S{\o}ren M{\o}ller and {E. Christiansen}, Rasmus and Ole Sigmund and Madsen, {S{\o}ren Peder} and Peter Balling and Brian Julsgaard",
year = "2020",
month = may,
doi = "10.1016/j.solmat.2020.110406",
language = "English",
volume = "208",
journal = "Solar Energy Materials & Solar Cells",
issn = "0927-0248",
publisher = "Elsevier BV * North-Holland",

}

RIS

TY - JOUR

T1 - Strongly enhanced upconversion in trivalent erbium ions by tailored gold nanostructures

T2 - Toward high-efficient silicon-based photovoltaics

AU - Christiansen, Jeppe

AU - Vester-Petersen, Joakim

AU - Nielsen, Søren Roesgaard

AU - Møller, Søren

AU - E. Christiansen, Rasmus

AU - Sigmund, Ole

AU - Madsen, Søren Peder

AU - Balling, Peter

AU - Julsgaard, Brian

PY - 2020/5

Y1 - 2020/5

N2 - Upconversion of sub-band-gap photons constitutes a promising way for improving the efficiency of silicon-based solar cells beyond the Shockley-Queisser limit. 1500nm to 980nm upconversion by trivalent erbium ions is well-suited for this purpose, but the small absorption cross section hinders real-world applications. We employ tailored gold nanostructures to vastly improve the upconversion efficiency in erbium-doped TiO 2 thin films. The nanostructures are found using topology optimization and parameter optimization and fabricated by electron beam lithography. In qualitative agreement with a theoretical model, the samples show substantial electric-field enhancements inside the upconverting films for excitation at 1500nm for both s- and p-polarization under a wide range of incidence angles and excitation intensities. An unprecedented upconversion enhancement of 913±51 is observed at 1.7Wcm −2. We derive a semi-empirical expression for the photonically enhanced upconversion efficiency, valid for all excitation intensities. This allows us to determine the upconversion properties needed to achieve significant improvements in real-world solar-cell devices through photonic-enhanced upconversion.

AB - Upconversion of sub-band-gap photons constitutes a promising way for improving the efficiency of silicon-based solar cells beyond the Shockley-Queisser limit. 1500nm to 980nm upconversion by trivalent erbium ions is well-suited for this purpose, but the small absorption cross section hinders real-world applications. We employ tailored gold nanostructures to vastly improve the upconversion efficiency in erbium-doped TiO 2 thin films. The nanostructures are found using topology optimization and parameter optimization and fabricated by electron beam lithography. In qualitative agreement with a theoretical model, the samples show substantial electric-field enhancements inside the upconverting films for excitation at 1500nm for both s- and p-polarization under a wide range of incidence angles and excitation intensities. An unprecedented upconversion enhancement of 913±51 is observed at 1.7Wcm −2. We derive a semi-empirical expression for the photonically enhanced upconversion efficiency, valid for all excitation intensities. This allows us to determine the upconversion properties needed to achieve significant improvements in real-world solar-cell devices through photonic-enhanced upconversion.

KW - High-efficient photovoltaics

KW - Photonic enhancement

KW - Topology optimization

KW - Upconversion of sub-band gap photons

U2 - 10.1016/j.solmat.2020.110406

DO - 10.1016/j.solmat.2020.110406

M3 - Journal article

VL - 208

JO - Solar Energy Materials & Solar Cells

JF - Solar Energy Materials & Solar Cells

SN - 0927-0248

M1 - 110406

ER -