Broadband down-conversion based near infrared quantum cutting in Eu2+–Yb3+ co-doped SrAl2O4 for crystalline silicon solar cells

Tai, Yuping; Zheng, Guojun; Wang, Hui; Bai, Jintao

doi:10.1016/j.jssc.2015.02.020

Cited by 35 publications

(17 citation statements)

References 28 publications

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“…10. CET I (I from 1 to 5) and ET J (J from 1 to 4) processes were described as follows: [50][51][52] CET 1 : ( 2 F 7/2 + 2 F 5/2 )(Yb 3+ ) + 5 D 2 (Eu 3+ ) / ( 2 F 7/2 + 2 F 7/2 )(Yb 3+ ) + 7 F 0 (Eu 3+ ).…”

Section: Nir Emissionmentioning

confidence: 99%

Optical band gaps and spectroscopy properties of Bi^m+/Euⁿ⁺/Yb³⁺ co-doped (m = 0, 2, 3; and n = 2, 3) zinc calcium silicate glasses

Dan

Trung

Tam³

et al. 2023

RSC Adv.

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Section: Nir Emissionmentioning

confidence: 99%

Optical band gaps and spectroscopy properties of Bi^m+/Euⁿ⁺/Yb³⁺ co-doped (m = 0, 2, 3; and n = 2, 3) zinc calcium silicate glasses

Dan

Trung

Tam³

et al. 2023

RSC Adv.

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“…Other materials, such as oxides doped with lanthanide ions, , silicon nanoparticles, , and quantum dots, − have been investigated as downconversion layers for semiconductor-based solar cells since Trupke and Richards’ landmark work in 2002. According to Shao et al, yellow light was produced when yttrium aluminum garnet:Ce 3+ phosphors were applied to the surface of a monocrystalline silicon solar cell.…”

Section: Downshifting Materials For Photovoltaic Applicationsmentioning

confidence: 99%

Synthesis and Luminescence Characterization of Downconversion and Downshifting Phosphor for Efficiency Enhancement of Solar Cells: Perspectives and Challenges

Satpute

Mehare

Tiwari

et al. 2022

ACS Appl. Electron. Mater.

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Currently, the world is facing an energy crisis. One of the techniques to fulfill the energy demand is to increase the utilization of solar energy. For harvesting solar energy in large amounts, it is essential to develop efficient solar cells. Notably, solar cells (photovoltaic cells) produce electricity from solar energy. The biggest hurdles, however, are the capability and reliability of solar cells. Poor energy density and the spectrum in the bandgap of semiconductor phosphors do not match the energy allocation of the photons in solar spectra lines. These issues and cell efficacy must be addressed before photovoltaic cells can be developed as a viable source of electrical power. The amount of energy generated per unit area depends linearly on cell efficiency. Hence, it makes sense to increase the efficiency rather than enhancing the space for solar cell installation. One well-known method for converting a high-energy photon into two or more lower-energy photons is “downconversion”, which makes use of the wide solar spectrum required for solar cells. The design maximizes the use of the entire sunlight spectrum, improving the efficiency of various solar cell types. This review article surveys how spectrum converters, especially lanthanide-based downconverters and downshifters will be developed. This review focuses on the current materials and methods used to enable the downconversion and downshifting processes in solar cells and some of the challenges in developing solar cells.

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“…Up-conversion leads to emission of photons of higher energy than the photons absorbed (anti-Stokes process). ,− It occurs when the emissive center is capable of accumulating energy from more than one ET event, and its advantages make it promising for new applications such as up-conversion lasers, , improved solar cells, , or bio-probes for theranostics . Down-conversion in turn, also called quantum cutting, produces photons of lower energy than the incoming ones. , When more than one photon per absorption event is emitted, >100% quantum yields may be observed. , Accessing improved solar cells may be among the benefits of this phenomenon . The active components leading to sensitized luminescence may be exploited in a variety of forms (glasses and ceramic materials, nanoparticles, polymers, metal–organic frameworks, etc.…”

Section: Introductionmentioning

confidence: 99%

Distributive Nd-to-Yb Energy Transfer within Pure [YbNdYb] Heterometallic Molecules

et al. 2023

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Facile access to site-selective hetero-lanthanide molecules will open new avenues in the search of novel photophysical phenomena based on Ln-to-Ln′ energy transfer (ET). This challenge demands strategies to segregate efficiently different Ln metal ions among different positions in a molecule. We report here the one-step synthesis and structure of a pure [YbNdYb] (1) coordination complex featuring short Yb•••Nd distances, ideal to investigate a potential distributive (i.e., from one donor to two acceptors) intramolecular ET from one Nd 3+ ion to two Yb 3+ centers within a well-characterized molecule. The difference in ionic radius is the mechanism allowing to allocate selectively both types of metal ion within the molecular structure, exploited with the simultaneous use of two β-diketone-type ligands. To assist the photophysical investigation of this heterometallic species, the analogues [YbLaYb] (2) and [LuNdLu] (3) have also been prepared. Sensitization of Yb 3+ and Nd 3+ in the last two complexes, respectively, was observed, with remarkably long decay times, facilitating the determination of the Nd-to-Yb ET within the [YbNdYb] composite. This ET was demonstrated by comparing the emission of iso-absorbant solutions of 1, 2, and 3 and through lifetime determinations in solution and solid state. The comparatively high efficiency of this process corroborates the facilitating effect of having two acceptors for the nonradiative decay of Nd 3+ created within the [YbNdYb] molecule.

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Broadband down-conversion based near infrared quantum cutting in Eu2+–Yb3+ co-doped SrAl2O4 for crystalline silicon solar cells

Cited by 35 publications

References 28 publications

Optical band gaps and spectroscopy properties of Bi^m+/Euⁿ⁺/Yb³⁺ co-doped (m = 0, 2, 3; and n = 2, 3) zinc calcium silicate glasses

Optical band gaps and spectroscopy properties of Bi^m+/Euⁿ⁺/Yb³⁺ co-doped (m = 0, 2, 3; and n = 2, 3) zinc calcium silicate glasses

Synthesis and Luminescence Characterization of Downconversion and Downshifting Phosphor for Efficiency Enhancement of Solar Cells: Perspectives and Challenges

Distributive Nd-to-Yb Energy Transfer within Pure [YbNdYb] Heterometallic Molecules

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Broadband down-conversion based near infrared quantum cutting in Eu2+–Yb3+ co-doped SrAl2O4 for crystalline silicon solar cells

Cited by 35 publications

References 28 publications

Optical band gaps and spectroscopy properties of Bim+/Eun+/Yb3+ co-doped (m = 0, 2, 3; and n = 2, 3) zinc calcium silicate glasses

Optical band gaps and spectroscopy properties of Bim+/Eun+/Yb3+ co-doped (m = 0, 2, 3; and n = 2, 3) zinc calcium silicate glasses

Synthesis and Luminescence Characterization of Downconversion and Downshifting Phosphor for Efficiency Enhancement of Solar Cells: Perspectives and Challenges

Distributive Nd-to-Yb Energy Transfer within Pure [YbNdYb] Heterometallic Molecules

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Optical band gaps and spectroscopy properties of Bi^m+/Euⁿ⁺/Yb³⁺ co-doped (m = 0, 2, 3; and n = 2, 3) zinc calcium silicate glasses

Optical band gaps and spectroscopy properties of Bi^m+/Euⁿ⁺/Yb³⁺ co-doped (m = 0, 2, 3; and n = 2, 3) zinc calcium silicate glasses