Improving efficiency of silicon solar cells using europium-doped silicate-phosphor layer by spin-on film coating

Ho, Wen‐Jeng; Yang, Guo-Chang; Shen, Yinghao; Deng, Yu-Jie

doi:10.1016/j.apsusc.2016.01.061

Cited by 27 publications

(20 citation statements)

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“…The emission dominated by 5 D 0 → 7 F 4 (~703 nm) transition is infrequent [11]. However, in the field of crystalline silicon (c-Si) solar cells, it is demonstrated that the increasing of photons emitted in the wavelength range of 700-900 nm will enhance the conversion efficiency [12,13].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

A novel red-emitting Eu 3+ -doped Na 2 MgSiO 4 phosphor with high intensity of 5 D 0 → 7 F 4 transition

Tang

Yang

Huang

2017

Journal of Alloys and Compounds

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Section: Accepted Manuscriptmentioning

confidence: 99%

A novel red-emitting Eu 3+ -doped Na 2 MgSiO 4 phosphor with high intensity of 5 D 0 → 7 F 4 transition

Tang

Yang

Huang

2017

Journal of Alloys and Compounds

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“…In a down‐conversion (DC) process, a high‐energy incident photon is absorbed by the DC phosphors and re‐emitted as two or more lower energy photons at wavelengths where the silicon solar cells exhibit a strong spectral response . A number of researchers have shown that there is significant enhancement in conversion efficiency of solar PV devices by integrating a down‐converting or luminescent down‐shifting (LDS) layer on the top surface of c‐Si solar cells …”

Section: Introductionmentioning

confidence: 99%

Improved photovoltaic performance of monocrystalline silicon solar cell through luminescent down‐converting Gd₂O₂S:Tb³⁺ phosphor

Meng

Dehouche

Ireland

et al. 2019

Progress in Photovoltaics

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This work reports on efforts to enhance the photovoltaic performance of standard ptype monocrystalline silicon solar cell (mono-Si) through the application of ultraviolet spectral down-converting phosphors. Terbium-doped gadolinium oxysulfide phosphor and undoped-gadolinium oxysulfide precursor powders were prepared by a controlled hydrothermal decomposition of a urea homogeneous precipitation method.The resulting rare-earth element hydroxycarbonate precursor powders were then converted to the oxysulfide by annealing at 900°C in a sulfur atmosphere. The asprepared phosphors were encapsulated in ethylene vinyl acetate co-polymer resin and applied on the textured surface of solar cell using rotary screen printing. Comparative results from X-ray powder diffraction, field emission scanning electron microscopy, scanning transmission electron microscopy, and photoluminescence spectroscopy studies on the microstructure and luminescent properties of the materials are reported. We also compared the optical reflectance and external quantum efficiency response of the cells with and without a luminescent phosphor layer. The results obtained on the terbium-doped gadolinium oxysulfide phosphor show clearly that the down-conversion effect induced by the terbium dopant play a crucial role in enhancing the photovoltaic cells' performance. Under an empirical one-sun illumination, the modified cells showed an optimum enhancement of 3.6% (from 16.43% to 17.02%) in conversion efficiency relative to bare cells. In the concentration range of 1 to 2.5 mg/mL, EVA/Gd 2 O 2 S (blank) composites also improve electrical efficiency, but not as much as EVA/Gd 2 O 2 S:Tb 3+ composites.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…Europium-doped (Eu-doped) phosphors are ideally suited to LDS, due to their high quantum efficiency and large Stokes-shift [ 18 , 19 ]. In numerous studies, samples with single species of Eu-doped phosphors have been evaluated as an LDS material for photovoltaic devices [ 20 , 21 , 22 , 23 , 24 ]. However, few researchers have investigated combining multiple species of Eu-doped phosphors in various ratios [ 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic Performance Enhancement of Silicon Solar Cells Based on Combined Ratios of Three Species of Europium-Doped Phosphors

You

Liu

et al. 2018

Materials

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This paper presents a scheme for the enhancement of silicon solar cells in terms of luminescent emission band and photovoltaic performance. The proposed devices are coated with an luminescent down-shifting (LDS) layer comprising three species of europium (Eu)-doped phosphors mixed within a silicate film (SiO2) using a spin-on film deposition. The three species of phosphor were mixed at ratios of 0.5:1:1.5, 1:1:1, or 1.5:1:0.5 in weight percentage (wt %). The total quantity of Eu-doped phosphors in the silicate solution was fixed at 3 wt %. The emission wavelengths of the Eu-doped phosphors were as follows: 518 nm (specie-A), 551 nm (specie-B), and 609 nm (specie-C). We examined the extended luminescent emission bands via photoluminescence measurements at room temperature. Closely matching the luminescent emission band to the high responsivity band of the silicon semiconductor resulted in good photovoltaic performance. Impressive improvements in efficiency were observed in all three samples: 0.5:1:1.5 (20.43%), 1:1:1 (19.67%), 1.5:1:0.5 (16.81%), compared to the control with a layer of pure SiO2 (13.80%).

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Improving efficiency of silicon solar cells using europium-doped silicate-phosphor layer by spin-on film coating

Cited by 27 publications

References 20 publications

A novel red-emitting Eu 3+ -doped Na 2 MgSiO 4 phosphor with high intensity of 5 D 0 → 7 F 4 transition

A novel red-emitting Eu 3+ -doped Na 2 MgSiO 4 phosphor with high intensity of 5 D 0 → 7 F 4 transition

Improved photovoltaic performance of monocrystalline silicon solar cell through luminescent down‐converting Gd₂O₂S:Tb³⁺ phosphor

Photovoltaic Performance Enhancement of Silicon Solar Cells Based on Combined Ratios of Three Species of Europium-Doped Phosphors

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Improving efficiency of silicon solar cells using europium-doped silicate-phosphor layer by spin-on film coating

Cited by 27 publications

References 20 publications

A novel red-emitting Eu 3+ -doped Na 2 MgSiO 4 phosphor with high intensity of 5 D 0 → 7 F 4 transition

A novel red-emitting Eu 3+ -doped Na 2 MgSiO 4 phosphor with high intensity of 5 D 0 → 7 F 4 transition

Improved photovoltaic performance of monocrystalline silicon solar cell through luminescent down‐converting Gd2O2S:Tb3+ phosphor

Photovoltaic Performance Enhancement of Silicon Solar Cells Based on Combined Ratios of Three Species of Europium-Doped Phosphors

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Improved photovoltaic performance of monocrystalline silicon solar cell through luminescent down‐converting Gd₂O₂S:Tb³⁺ phosphor