Polarization-independent filters for luminescent solar concentrators

D.K.G. Boer, de, C.-W. Lin, M. P. Giesbers, H.J. Cornelissen, M.G. Debije, P.P.C. Verbunt, D.J. Broer

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Abstract

The efficiency of luminescent solar concentrators could be enhanced by use of wavelength-selective filters, reducing the amount of luminescent light lost. To accomplish this, polarization-independent filters with reflectivity >97% were made by combining layers of cholesteric liquid crystals, either a right- with a left-handed layer, or two right-handed layers with a half-lambda waveplate. Normal cholesteric filters have a reflection bandwidth which is narrower than the spectral and angular range of the luminescent emission. The reflection band is broadened from 80 to 200 nm by employing a pitch gradient in the cholesteric layer. The measured transmission bands compare well with calculations.
Original languageEnglish
Article number021111
Pages (from-to)021111-1/3
Number of pages3
JournalApplied Physics Letters
Volume98
Issue number2
DOIs
Publication statusPublished - 2011

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concentrators
filters
polarization
liquid crystals
bandwidth
reflectance
gradients
wavelengths

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Boer, de, D. K. G., Lin, C-W., Giesbers, M. P., Cornelissen, H. J., Debije, M. G., Verbunt, P. P. C., & Broer, D. J. (2011). Polarization-independent filters for luminescent solar concentrators. Applied Physics Letters, 98(2), 021111-1/3. [021111]. https://doi.org/10.1063/1.3541543
Boer, de, D.K.G. ; Lin, C.-W. ; Giesbers, M. P. ; Cornelissen, H.J. ; Debije, M.G. ; Verbunt, P.P.C. ; Broer, D.J. / Polarization-independent filters for luminescent solar concentrators. In: Applied Physics Letters. 2011 ; Vol. 98, No. 2. pp. 021111-1/3.
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Boer, de, DKG, Lin, C-W, Giesbers, MP, Cornelissen, HJ, Debije, MG, Verbunt, PPC & Broer, DJ 2011, 'Polarization-independent filters for luminescent solar concentrators', Applied Physics Letters, vol. 98, no. 2, 021111, pp. 021111-1/3. https://doi.org/10.1063/1.3541543

Polarization-independent filters for luminescent solar concentrators. / Boer, de, D.K.G.; Lin, C.-W.; Giesbers, M. P.; Cornelissen, H.J.; Debije, M.G.; Verbunt, P.P.C.; Broer, D.J.

In: Applied Physics Letters, Vol. 98, No. 2, 021111, 2011, p. 021111-1/3.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Polarization-independent filters for luminescent solar concentrators

AU - Boer, de, D.K.G.

AU - Lin, C.-W.

AU - Giesbers, M. P.

AU - Cornelissen, H.J.

AU - Debije, M.G.

AU - Verbunt, P.P.C.

AU - Broer, D.J.

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AB - The efficiency of luminescent solar concentrators could be enhanced by use of wavelength-selective filters, reducing the amount of luminescent light lost. To accomplish this, polarization-independent filters with reflectivity >97% were made by combining layers of cholesteric liquid crystals, either a right- with a left-handed layer, or two right-handed layers with a half-lambda waveplate. Normal cholesteric filters have a reflection bandwidth which is narrower than the spectral and angular range of the luminescent emission. The reflection band is broadened from 80 to 200 nm by employing a pitch gradient in the cholesteric layer. The measured transmission bands compare well with calculations.

U2 - 10.1063/1.3541543

DO - 10.1063/1.3541543

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Boer, de DKG, Lin C-W, Giesbers MP, Cornelissen HJ, Debije MG, Verbunt PPC et al. Polarization-independent filters for luminescent solar concentrators. Applied Physics Letters. 2011;98(2):021111-1/3. 021111. https://doi.org/10.1063/1.3541543