Combined up conversion, down conversion and down shifting photo-luminescence of low cost erbium–ytterbium co-doped porous silicon produced by stain etching

Díaz-Herrera, B.; Jiménez-Rodríguez, E.; González‐Díaz, Benjamín; Montesdeoca-Santana, A.; Velázquez, J. J.; Guerrero‐Lemus, Ricardo

doi:10.1016/j.tsf.2011.04.029

Cited by 14 publications

(5 citation statements)

References 42 publications

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“…DC and UC processes are widely applicable in conversion silicon solar cells to improve their power conversion efficiency (PCE). For example, a DC phosphor layer has the potential to generate two low energy photons from one incident high energy photon . Therefore, placing such a DC phosphor layer in the front side of the conventional silicon solar cell has the potential to improve the PCE considerably.…”

Section: Emission From Undoped and Rare Earth Doped Down Converted Or...mentioning

confidence: 99%

“…For example, a DC phosphor layer has the potential to generate two low energy photons from one incident high energy photon. 96 Therefore, placing such a DC phosphor layer in the front side of the conventional silicon solar cell has the potential to improve the PCE considerably. A PCE of ∼39.6% has been reported for nonconcentrated sunlight, which is a significant improvement to the Shockley−Queisser limit 97 due to incorporation of a DC layer.…”

Section: ■ Defect Related Emission In Znomentioning

confidence: 99%

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Rare Earth Doped Zinc Oxide Nanophosphor Powder: A Future Material for Solid State Lighting and Solar Cells

et al. 2017

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A comprehensive review of up-conversion (UP) and down-conversion (DC) or down shifting of rare earth (RE) doped zinc oxide (ZnO) nanophosphors is presented. Research interest in the development of RE 3+ doped ZnO for UP and DC nanophosphors has been encouraged by the potential application of these materials in light emitting diodes and different types of photovoltaic cells. A range of remarkable characteristics, which are organized into different sections describing the structure, optical, and luminescence properties of these materials, are discussed in detail. Undoped ZnO has two characteristic emissions in the ultraviolet and visible regions related, respectively, to excitonic recombination and intrinsic defects. X-ray photoelectron spectroscopy (XPS) data demonstrated a correlation between the visible emission and intrinsic defects. In the case of the DC or shifting process, there was simultaneous emissions related to f → f transitions of RE ions and defects in ZnO host. These emissions were dependent on the synthesis method, annealing temperature, and RE ion concentration, among other things; only f → f transitions of RE ions were observed in the case of the UC process. These down and up conversion RE doped ZnO phosphors were evaluated for a possible application in solid state lighting and photovoltaic cells.

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Section: Emission From Undoped and Rare Earth Doped Down Converted Or...mentioning

confidence: 99%

Section: ■ Defect Related Emission In Znomentioning

confidence: 99%

Rare Earth Doped Zinc Oxide Nanophosphor Powder: A Future Material for Solid State Lighting and Solar Cells

et al. 2017

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“…They can be classified in two groups: (i) DS integrated in the solar cell; and (ii) DS located in a separate layer on top of the device. However, as the diffusion of rare earths in the solar cell is very difficult and the luminescence obtained is very low [18], the best option is to place the DS on the PV device [17]. For this option, there have been works showing the addition of the DS as a dopant in the antireflection coating of the solar cell [19], but the most common procedure is to embed the DS in a polymer and directly apply it to the solar cell [20][21][22].…”

Section: -Introductionmentioning

confidence: 99%

Evolution of the external quantum efficiency of Si-based PV minimodules with encapsulated down-shifters and aged under UV radiation

González‐Díaz

Saw

Hernández-Rodríguez

et al. 2020

Materials Science and Engineering: B

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“…Up to now, sodium yttrium fluoride (NaYF 4 ) doped with trivalent lanthanide ions, such as Yb 3+ , Gd 3+ and Er 3+ , is the most promising material for upconversions [ 8 ]. It has emission bands in the visible spectrum, where solar cells have the high internal collection efficiency [ 9 ]. Moreover, the absorption band of this material lies in NIR range, not deteriorating the visible light response of solar cells.…”

Section: Introductionmentioning

confidence: 99%

Near-infrared light harvesting of upconverting NaYF₄:Yb³⁺/Er³⁺-based amorphous silicon solar cells investigated by an optical filter

Liu

Wang

2018

Beilstein J. Nanotechnol.

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The wastage of near-infrared light seriously restricts the photoelectric conversion efficiency of hydrogenated amorphous silicon (a-Si:H) thin film solar cells. Spectral upconversion is of great significance in reducing the wastage. Herein, the upconverting compound NaYF4:Yb3+/Er3+ was synthesized via a hydrothermal method. SEM and XRD results revealed the morphology and a phase transition from cubic to hexagonal NaYF4. Photoluminescence spectra indicated that the hexagonal NaYF4:Yb3+/Er3+ nanorods convert near-infrared light of 980 nm to the visible light with wavelength peaks at 654, 541 and 522 nm. Hence, the upconverting rods were incorporated in a polymethylmethacrylate (PMMA) layer on the rear side of a-Si:H solar cell. Under AM1.5 solar irradiation, a facile optical filter was used to scrutinize the effect of upconversion on the cell performance. Compared with a bare cell, the NaYF4:Yb3+/Er3+-based a-Si:H cell exhibited an 25% improved short-circuit current and an appreciable improvement of the near-infrared response of the external quantum efficiency. Moreover, because the size of the nanorods is comparable to the wavelength of visible light, the rods effectively scattered light, thus enhancing the visible light harvesting.

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Combined up conversion, down conversion and down shifting photo-luminescence of low cost erbium–ytterbium co-doped porous silicon produced by stain etching

Cited by 14 publications

References 42 publications

Rare Earth Doped Zinc Oxide Nanophosphor Powder: A Future Material for Solid State Lighting and Solar Cells

Rare Earth Doped Zinc Oxide Nanophosphor Powder: A Future Material for Solid State Lighting and Solar Cells

Evolution of the external quantum efficiency of Si-based PV minimodules with encapsulated down-shifters and aged under UV radiation

Near-infrared light harvesting of upconverting NaYF₄:Yb³⁺/Er³⁺-based amorphous silicon solar cells investigated by an optical filter

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Combined up conversion, down conversion and down shifting photo-luminescence of low cost erbium–ytterbium co-doped porous silicon produced by stain etching

Cited by 14 publications

References 42 publications

Rare Earth Doped Zinc Oxide Nanophosphor Powder: A Future Material for Solid State Lighting and Solar Cells

Rare Earth Doped Zinc Oxide Nanophosphor Powder: A Future Material for Solid State Lighting and Solar Cells

Evolution of the external quantum efficiency of Si-based PV minimodules with encapsulated down-shifters and aged under UV radiation

Near-infrared light harvesting of upconverting NaYF4:Yb3+/Er3+-based amorphous silicon solar cells investigated by an optical filter

Contact Info

Product

Resources

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Near-infrared light harvesting of upconverting NaYF₄:Yb³⁺/Er³⁺-based amorphous silicon solar cells investigated by an optical filter