Enhanced up-conversion for photovoltaics via concentrating integrated optics

Georgios E. Arnaoutakis, Jose Marques-Hueso, Aruna Ivaturi, Karl W. Krämer, Stefan Fischer, Jan Christoph Goldschmidt, Bryce S. Richards

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Concentrating optics are integrated into up-conversion photovoltaic (UC-PV) devices to independently concentrate sub-band-gap photons on the up-conversion layer, without affecting the full solar concentration on the overlying solar cell. The UC-PV devices consist of silicon solar cells optimized for up-conversion, coupled with tapered and parabolic dielectric concentrators, and hexagonal sodium yttrium fluoride (β-NaYF4) up-converter doped with 25% trivalent erbium (Er3+). A normalized external quantum efficiency of 1.75x10-2 cm2/W and 3.38x10-2 cm2/W was obtained for the UC-PV device utilizing tapered and parabolic concentrators respectively. Although low to moderate concentration was shown to maximize UC, higher concentration lead to saturation and reduced external quantum efficiency. The presented work highlights some of the implications associated with the development of UC-PV devices and designates a substantial step for integration in concentrating PV.

Original languageEnglish
Pages (from-to)A452-A464
Number of pages13
JournalOptics Express
Volume22
Issue numberS2
DOIs
Publication statusPublished - 24 Feb 2014

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photovoltaic conversion
integrated optics
concentrating
concentrators
quantum efficiency
solar cells
up-converters
yttrium
erbium
fluorides
sodium
saturation
photons

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Arnaoutakis, G. E., Marques-Hueso, J., Ivaturi, A., Krämer, K. W., Fischer, S., Goldschmidt, J. C., & Richards, B. S. (2014). Enhanced up-conversion for photovoltaics via concentrating integrated optics. Optics Express, 22(S2), A452-A464. https://doi.org/10.1364/OE.22.00A452
Arnaoutakis, Georgios E. ; Marques-Hueso, Jose ; Ivaturi, Aruna ; Krämer, Karl W. ; Fischer, Stefan ; Goldschmidt, Jan Christoph ; Richards, Bryce S. / Enhanced up-conversion for photovoltaics via concentrating integrated optics. In: Optics Express. 2014 ; Vol. 22, No. S2. pp. A452-A464.
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Arnaoutakis, GE, Marques-Hueso, J, Ivaturi, A, Krämer, KW, Fischer, S, Goldschmidt, JC & Richards, BS 2014, 'Enhanced up-conversion for photovoltaics via concentrating integrated optics', Optics Express, vol. 22, no. S2, pp. A452-A464. https://doi.org/10.1364/OE.22.00A452

Enhanced up-conversion for photovoltaics via concentrating integrated optics. / Arnaoutakis, Georgios E.; Marques-Hueso, Jose; Ivaturi, Aruna; Krämer, Karl W.; Fischer, Stefan; Goldschmidt, Jan Christoph; Richards, Bryce S.

In: Optics Express, Vol. 22, No. S2, 24.02.2014, p. A452-A464.

Research output: Contribution to journalArticle

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Arnaoutakis GE, Marques-Hueso J, Ivaturi A, Krämer KW, Fischer S, Goldschmidt JC et al. Enhanced up-conversion for photovoltaics via concentrating integrated optics. Optics Express. 2014 Feb 24;22(S2):A452-A464. https://doi.org/10.1364/OE.22.00A452