A qualitative study and field performance for a fluorescent solar collector

Mansour, Ahmed; El-Shaarawy, M.G.; El-Bashir, S.M.; El‐Mansy, M. K.; Hammam, M.

doi:10.1016/s0142-9418(01)00082-4

Cited by 32 publications

(21 citation statements)

References 8 publications

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“…Solid SP20:1:0 showed short emission lifetimes at shorter wavelengths, increasing at longer wavelengths (Figure 5 (a) and (b)). Like other luminophores in polymeric systems, [41][42][43][44][45][46][47] the SM luminophores display a range of excitation energies due to aggregation, different microenvironments and conformations in the disordered solid polymer. Homo-FRET between like-luminophores in different energy configurations is then possible, leading to the large observed redward shift.…”

Section: Polymer Thin-film Photophysicsmentioning

confidence: 99%

“…While highly concentrated perylenedoped polymer films (1 − 3 M) have been prepared in previous work, 14,29,43 the majority of the literature reports perylene doped polymer films of 5 × 10 −4 − 5 × 10 −2 M 44,45 and weight percentages of 0.006 − 5%. 35,46,47,51 We present perylene films with concentrations in the range of 0.05-0.31M and 18-30 wt%. Although aggregation was found to occur, all polymer samples still exhibited fluorescence at this high concentration.…”

Section: Polymer Thin-film Photophysicsmentioning

confidence: 99%

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Energy transfer in pendant perylene diimide copolymers

et al. 2016

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We report the synthesis, characterisation and polymerisation of two novel asymmetric perylene diimide acrylate monomers. The novel monomers form a sensitiser-acceptor pair capable of undergoing Förster resonance energy transfer, and were incorporated as copolymers with tert-butyl acrylate. The tert-butyl acrylate units act as spacers along the polymer chain allowing high concentrations of dye while mitigating aggregate quenching, leading to persistent fluorescence in the solid state at high concentrations of up to 0.3 M. Analysis of fluorescence kinetics showed efficient energy transfer between the optically dense sensitiser and the lower concentration acceptor luminophores within the polymer. This reduced reabsorption within the material demonstrates that the copolymer-scaffold energy transfer system has potential for use in luminescent solar concentrators.

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Section: Polymer Thin-film Photophysicsmentioning

confidence: 99%

Section: Polymer Thin-film Photophysicsmentioning

confidence: 99%

Energy transfer in pendant perylene diimide copolymers

et al. 2016

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“…Monomer MMA containing BTBPD was transformed to PMMA sheet using the thermal free radical polymerization method with 1 wt% of benzoyl peroxide initiator in a glass mold at 60 o C for 72 hours [10].…”

Section: Imbedding Of Btbpd Into Pmma Matrixmentioning

confidence: 99%

The luminescent solar concentrators with the H-aggregate of perylene diimide dye imbedded into PMMA

Han

Kim

2015

Fibers Polym

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A perylene diimide fluorescent dye, N,N'-bis-(2-tert-butylaniline)-3,4,9,10-perylenetetracarboxylic diimide (BTBPD) was synthesized and crystallized to H-aggregate. The dye aggregates were studied for their photophysical properties, such as absorption and emission behavior, fluorescence efficiency, and Stokes shift in comparison with synthesized raw powder-formed dyes. The fluorescent dyes were then imbedded into the PMMA sheet through the thermal free radical polymerization of a methyl methacrylate monomer. Various luminescent solar concentrators were fabricated using these dye-imbedded PMMA sheets with the aid of a multi-crystalline silicon solar cell, side mirror, and backside diffuse reflector. The solar cells were studied on their photovoltaic performance, such as V o c , I s c , photoelectric conversion efficiencies, IPCE, and external quantum efficiencies. The effect of the crystalline form of the dyes on solar cell performance was investigated.

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“…The pyrene and perylene molecules were reported to possess high (0.65-0.9) quantum yields. [8,9,18] Even if these yields increase due to cavity QED effects, they are limited to unity so that only small (< 1.5-times) increases in the intensity ratio are expected. The drastic enhancement shown in Figure 2 can be attributed to both the change in the critical concentration C 0 within the cavity and the QED effects on h D and h A .…”

Section: Size Dependence Of Emission Spectramentioning

confidence: 99%

“…[8][9][10] It was theoretically and experimentally shown that the energy-transfer processes of molecules dispersed in microdroplets were enhanced compared to those in a bulk solution. [11,12] Photons emitted by the donors are coupled into the whispering-gallery modes of the microdroplets, in which a photon propagates circumferentially under the total internal reflection condition at the interface between the droplet and the surroundings so that resonant fields are formed along the interface.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Förster Energy Transfer within a Microspherical Cavity

2005

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Energy transfer from pyrene to perylene molecules co-doped within a poly(methyl methacrylate) latex microsphere was drastically accelerated relative to free space. Fluorescence spectra of the microspheres showed that the relative emission intensities of pyrene and perylene changed with the sphere diameter. Analyses of emission decay profiles clarified that Förster-type energy-transfer processes were induced and that the transfer rates increased within the microspherical cavity. This enhancement can be ascribed not only to the quantum electrodynamic effects on the pyrene emission rate, but also the cavity effect of increasing the overlapping factor between donor emission and acceptor absorption spectra.

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A qualitative study and field performance for a fluorescent solar collector

Cited by 32 publications

References 8 publications

Energy transfer in pendant perylene diimide copolymers

Energy transfer in pendant perylene diimide copolymers

The luminescent solar concentrators with the H-aggregate of perylene diimide dye imbedded into PMMA

Enhancement of Förster Energy Transfer within a Microspherical Cavity

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