Resonance-shifting to circumvent reabsorption loss in luminescent solar concentrators

Noel C. Giebink, Gary P. Wiederrecht, Michael R Wasielewski

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

Luminescent solar concentrators (LSCs) provide a simple means to concentrate sunlight without tracking the Sun. These devices absorb and then re-emit light at a lower frequency into the confined modes of a transparent slab, where it is guided towards photovoltaic cells attached to the slab edges. In the thermodynamic limit, a concentration ratio exceeding the equivalent of 100 suns is possible, but, in actual LSCs, optical propagation loss (due mostly to reabsorption) limits the concentration ratio to ∼10. Here, we introduce a general, all-optical means to overcome this problem by 'resonance-shifting', in which sharply directed emission from a bilayer cavity into the glass substrate returns to interact with the cavity off-resonance at each subsequent bounce, significantly reducing reabsorption loss en route to the edges. Using this strategy, we demonstrate near-lossless propagation for several different chromophores, which ultimately enables a more than twofold increase in concentration ratio over that of the corresponding conventional LSC.

Original languageEnglish
Pages (from-to)694-701
Number of pages8
JournalNature Photonics
Volume5
Issue number11
DOIs
Publication statusPublished - Nov 2011

Fingerprint

Solar concentrators
concentrators
slabs
Light propagation
cavities
propagation
Photovoltaic cells
photovoltaic cells
sunlight
Chromophores
chromophores
routes
Thermodynamics
low frequencies
Glass
thermodynamics
glass
Substrates

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Resonance-shifting to circumvent reabsorption loss in luminescent solar concentrators. / Giebink, Noel C.; Wiederrecht, Gary P.; Wasielewski, Michael R.

In: Nature Photonics, Vol. 5, No. 11, 11.2011, p. 694-701.

Research output: Contribution to journalArticle

Giebink, Noel C. ; Wiederrecht, Gary P. ; Wasielewski, Michael R. / Resonance-shifting to circumvent reabsorption loss in luminescent solar concentrators. In: Nature Photonics. 2011 ; Vol. 5, No. 11. pp. 694-701.
@article{0b5183f9b16145e6b4e7b76929ba6b88,
title = "Resonance-shifting to circumvent reabsorption loss in luminescent solar concentrators",
abstract = "Luminescent solar concentrators (LSCs) provide a simple means to concentrate sunlight without tracking the Sun. These devices absorb and then re-emit light at a lower frequency into the confined modes of a transparent slab, where it is guided towards photovoltaic cells attached to the slab edges. In the thermodynamic limit, a concentration ratio exceeding the equivalent of 100 suns is possible, but, in actual LSCs, optical propagation loss (due mostly to reabsorption) limits the concentration ratio to ∼10. Here, we introduce a general, all-optical means to overcome this problem by 'resonance-shifting', in which sharply directed emission from a bilayer cavity into the glass substrate returns to interact with the cavity off-resonance at each subsequent bounce, significantly reducing reabsorption loss en route to the edges. Using this strategy, we demonstrate near-lossless propagation for several different chromophores, which ultimately enables a more than twofold increase in concentration ratio over that of the corresponding conventional LSC.",
author = "Giebink, {Noel C.} and Wiederrecht, {Gary P.} and Wasielewski, {Michael R}",
year = "2011",
month = "11",
doi = "10.1038/nphoton.2011.236",
language = "English",
volume = "5",
pages = "694--701",
journal = "Nature Photonics",
issn = "1749-4885",
publisher = "Nature Publishing Group",
number = "11",

}

TY - JOUR

T1 - Resonance-shifting to circumvent reabsorption loss in luminescent solar concentrators

AU - Giebink, Noel C.

AU - Wiederrecht, Gary P.

AU - Wasielewski, Michael R

PY - 2011/11

Y1 - 2011/11

N2 - Luminescent solar concentrators (LSCs) provide a simple means to concentrate sunlight without tracking the Sun. These devices absorb and then re-emit light at a lower frequency into the confined modes of a transparent slab, where it is guided towards photovoltaic cells attached to the slab edges. In the thermodynamic limit, a concentration ratio exceeding the equivalent of 100 suns is possible, but, in actual LSCs, optical propagation loss (due mostly to reabsorption) limits the concentration ratio to ∼10. Here, we introduce a general, all-optical means to overcome this problem by 'resonance-shifting', in which sharply directed emission from a bilayer cavity into the glass substrate returns to interact with the cavity off-resonance at each subsequent bounce, significantly reducing reabsorption loss en route to the edges. Using this strategy, we demonstrate near-lossless propagation for several different chromophores, which ultimately enables a more than twofold increase in concentration ratio over that of the corresponding conventional LSC.

AB - Luminescent solar concentrators (LSCs) provide a simple means to concentrate sunlight without tracking the Sun. These devices absorb and then re-emit light at a lower frequency into the confined modes of a transparent slab, where it is guided towards photovoltaic cells attached to the slab edges. In the thermodynamic limit, a concentration ratio exceeding the equivalent of 100 suns is possible, but, in actual LSCs, optical propagation loss (due mostly to reabsorption) limits the concentration ratio to ∼10. Here, we introduce a general, all-optical means to overcome this problem by 'resonance-shifting', in which sharply directed emission from a bilayer cavity into the glass substrate returns to interact with the cavity off-resonance at each subsequent bounce, significantly reducing reabsorption loss en route to the edges. Using this strategy, we demonstrate near-lossless propagation for several different chromophores, which ultimately enables a more than twofold increase in concentration ratio over that of the corresponding conventional LSC.

UR - http://www.scopus.com/inward/record.url?scp=80455160364&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80455160364&partnerID=8YFLogxK

U2 - 10.1038/nphoton.2011.236

DO - 10.1038/nphoton.2011.236

M3 - Article

VL - 5

SP - 694

EP - 701

JO - Nature Photonics

JF - Nature Photonics

SN - 1749-4885

IS - 11

ER -