Luminescent Solar Concentrators Based On Dyes Incorporated In Thin Polymer Films

Reisfeld, R.; Eyal, M.; Eyal, Valery; Chernyak, Valery; Zusman, Rivka

doi:10.1117/12.951098

Cited by 4 publications

(3 citation statements)

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“…Typically, fluorescent molecules are cast into a transparent plastic sheet such as PMMA and the ready solar cell is bonded to one side of the plate [15][16][17][18]. To simplify the fabricating process and effectively improve the photon harvesting, an integrating method is preferred here.…”

Section: Resultsmentioning

confidence: 99%

Large improvement of photon capture for a dye-sensitized solar cell integrated with a fluorescent layer

Li¹,

Ding²,

Shen³

et al. 2009

J. Phys. D: Appl. Phys.

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An integrated design of dye-sensitized solar cell with fluorescent layer is realized. A fluorescent layer is deposited on a fluorine-doped tin oxide (FTO) glass with a blank right above a N719 dye-sensitized TiO 2 coating which is printed on the central area of the conductive face of the FTO glass. Current density-voltage characteristic measurement indicates that our integrated system largely enhances photon harvesting by 44% compared with a cell without a fluorescent layer, which is attributed to the improvement of photon harvesting from the spectrum range and the space area.

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Section: Resultsmentioning

confidence: 99%

Large improvement of photon capture for a dye-sensitized solar cell integrated with a fluorescent layer

Li¹,

Ding²,

Shen³

et al. 2009

J. Phys. D: Appl. Phys.

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“…Despite the demonstrated applicability of sol−gel-derived materials to a wide range of areas, we continue to lack a complete understanding of the behavior of organic molecules entrapped within a sol−gel-derived material. Over the past several years, there have been numerous reports on the characterization of sol−gel materials doped with various probe molecules. − In most cases, the probe molecules were used to better understand the sol−gel process or to investigate the effect(s) of the sol−gel matrix on the actual dopant.…”

Section: Introductionmentioning

confidence: 99%

“…Over the past several years, there have been numerous reports on the characterization of sol-gel materials doped with various probe molecules. [18][19][20][21][22][23][24][25][26][27][28][29][30] In most cases, the probe molecules were used to better understand the sol-gel process or to investigate the effect(s) of the sol-gel matrix on the actual dopant.…”

Section: Introductionmentioning

confidence: 99%

Conformational Flexibility of 1,3-Bis(1-pyrenyl)propane Throughout the Sol−Gel to Xerogel Process

Narang

Bright

1996

Chem. Mater.

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We report on the conformational flexibility of 1,3-bis(1-pyrenyl)propane (BPP) doped within tetramethyl orthosilicate (TMOS)-derived sol−gel materials. In normal liquid solution, at low concentrations (∼10-6 M), BPP molecules do not form any ground-state dimers; however, on photoexcitation, BPP reorients to form an intramolecular excited-state dimer (excimer). We follow, using steady-state and time-resolved fluorescence spectroscopy, the excimer-like emission from BPP molecules doped within a TMOS-derived sol−gel monolith throughout the entire sol−gel to xerogel formation process. Our results indicate that there are no detectable ground-state dimers formed even after the xerogel has aged and dried for 3 months. In a fresh gel, there is substantial flexibility of the BPP molecules (like in solution) but the flexibility becomes restricted or slowed when the xerogel is formed. We also observe that the conformational flexibility of BPP molecules is reduced further if the solvent is allowed to escape at a faster rate from the sol−gel matrix. As observed in dilute BPP solutions, the fluorescence intensity decay traces for BPP-doped sol−gel-derived glasses at various stages in the sol−gel to xerogel aging process are best described by a triple-exponential decay law. The time-resolved experiments clearly demonstrate that the BPP conformational dynamics are slowed once the xerogel is formed. Together these results provide information on the scale over which dopant dynamics can be controlled within sol−gel-derived composite materials.

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Langmuir-Blodgett Films: Past, Present and Future

Swalen

1991

Surfactants in Solution

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Luminescent Solar Concentrators Based On Dyes Incorporated In Thin Polymer Films

Cited by 4 publications

References 0 publications

Large improvement of photon capture for a dye-sensitized solar cell integrated with a fluorescent layer

Large improvement of photon capture for a dye-sensitized solar cell integrated with a fluorescent layer

Conformational Flexibility of 1,3-Bis(1-pyrenyl)propane Throughout the Sol−Gel to Xerogel Process

Langmuir-Blodgett Films: Past, Present and Future

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