Photovoltaic cells energy performance enhancement with down-converting photoluminescence phosphors

Tahhan, Abdulla; Dehouche, Zahir; Fern, George R.; Haverkamp, E.J.

doi:10.1002/er.3358

Cited by 5 publications

(3 citation statements)

References 15 publications

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“…This material absorbs significantly more radiation in the long wavelength region of the solar spectrum compared to the short wavelength regions. The spectral response of a SC in the short wavelengths below 500 nm can be improved by utilizing appropriate Luminescent downshifting (LDS) materials (Strümpel et al 2007, Klampaftis et al 2009, Tahhan et al 2015, Jung 2023, Kalluvettukuzhy et al 2023, Oni et al 2024a. These materials effectively convert the inefficiently harnessed short-wavelength photons (UV and blue region) of the incident solar spectrum into longer, more favorable wavelengths (visible region) where the solar cell operates more effectively, thus enhancing overall efficiency (Klampaftis et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Luminescent boron carbon oxynitride phosphors: a cost-efficient strategy to boost solar cell spectral responsiveness

Soley,

Verma,

Khatri

2024

Mater. Res. Express

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The incorporation of a Luminescent down-shifting (LDS) layer has emerged as a compelling approach for augmenting the light absorption sensitivity and power conversion efficiency of solar cells, particularly in the short-wavelength light spectrum. In this investigation, we propose the utilization of low-cost, environmentally benign Boron carbon oxynitride (BCNO) phosphors as a viable material for the enhancement of solar radiation absorption in the ultraviolet-blue range. We synthesized BCNO phosphors through a combustion method and conducted a comprehensive analysis of the structural and spectral attributes concerning the impact of temperature. The synthesized boron carbon oxynitride phosphors exhibit a hexagonal boron nitride structure, with an irregular shape and particle sizes ranging from 4 µm to 27 µm. The analysis of photoluminescence spectra reveals that BCNO phosphors effectively capture photons within the 300-500 nm wavelength range and subsequently re-emit them at longer wavelengths. This phenomenon aligns with the overarching goal of optimizing solar cell performance, as it is in the longer wavelength range that solar cells exhibit enhanced efficiency. These findings support the promising potential of BCNO phosphors as a compelling choice for deployment as an LDS layer material on the periphery of solar cells. By facilitating increased photon absorption in the short-wavelength region, BCNO phosphors have the capacity to significantly enhance device performance.

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Section: Introductionmentioning

confidence: 99%

Luminescent boron carbon oxynitride phosphors: a cost-efficient strategy to boost solar cell spectral responsiveness

Soley,

Verma,

Khatri

2024

Mater. Res. Express

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“…As a result, the maximum theoretical conversion efficiency for a single‐junction c‐Si solar cell with energy gap of 1.1 eV is limited to 30% . Reducing these losses in c‐Si solar cells may be achievable through spectrum modification by employing down‐converting phosphors . 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 .…”

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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“…One of the most promising mechanisms that are under study to improve the conversion efficiency in c-Si solar cells is the photon down-conversion effect [9][10][11], in which the most energetic photons [from ultraviolet (UV) light] are absorbed by one film placed on the top of the solar cell and then re-emitted as lower energetic photons (~1.1 eV). Moreover, one high-energy photon can create more than one low-energy photon, reducing the energy lost due to thermalization and thus enhancing the external quantum efficiency (EQE) and consequently improving the solar cell efficiency.…”

Section: Introductionmentioning

confidence: 99%

Study of the photon down-conversion effect produced by thin silicon-rich oxide films on silicon solar cells

Vivaldo

Carrillo

López

et al. 2016

Int. J. Energy Res.

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Summary In the present work, we studied the photon down‐conversion effect produced by thin films of silicon oxide with embedded silicon nanocrystals also called silicon‐rich oxide (SRO). These films have been used to absorb high energy light and the re‐emission of two or more low energy photons (~1.1 eV) with the goal of improving the external quantum efficiency and consequently the conversion efficiency of silicon solar cells. According to our results, the incorporation of a thin SRO film on the solar cell surface increases the short circuit current and the FF of the silicon solar cells; the enhancement of spectral response is due to the high photoluminescence intensity of the SRO in the visible region when irradiated with UV light. An improvement of 38% in the solar cell efficiency has been observed in our particular solar cell fabrication process by the use of an SRO film with high photoluminescence intensity, which replaces the conventional silicon dioxide film. Copyright © 2016 John Wiley & Sons, Ltd.

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Photovoltaic cells energy performance enhancement with down-converting photoluminescence phosphors

Cited by 5 publications

References 15 publications

Luminescent boron carbon oxynitride phosphors: a cost-efficient strategy to boost solar cell spectral responsiveness

Luminescent boron carbon oxynitride phosphors: a cost-efficient strategy to boost solar cell spectral responsiveness

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

Study of the photon down-conversion effect produced by thin silicon-rich oxide films on silicon solar cells

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Photovoltaic cells energy performance enhancement with down-converting photoluminescence phosphors

Cited by 5 publications

References 15 publications

Luminescent boron carbon oxynitride phosphors: a cost-efficient strategy to boost solar cell spectral responsiveness

Luminescent boron carbon oxynitride phosphors: a cost-efficient strategy to boost solar cell spectral responsiveness

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

Study of the photon down-conversion effect produced by thin silicon-rich oxide films on silicon solar cells

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