On the optimization of InGaP/GaAs/InGaAs triple-junction solar cell

Saif, Omar M.; Abouelatta, Mohamed; Shaker, Ahmed; Elsaid, Mohamed

doi:10.1088/1757-899x/446/1/012010

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…Although not modelled in this study, the photovoltage could theoretically be increased further with minimal impact on the photocurrent by using In-GaP/GaAs/InGaAs cells, since the subcell band gaps are slightly wider than those of InGaP/(In)GaAs/Ge cells, particularly for the bottom subcell. [35,39] However, such cells are still under development.…”

Section: Computational Analysismentioning

confidence: 99%

Unlocking Ultra‐High Performance in Immersed Solar Water Splitting with Optimised Energetics

Butson,

Sharma,

Tournet

et al. 2023

Advanced Energy Materials

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This research introduces a pioneering approach to solar water splitting technology, utilizing an innovative, highly efficient immersed system. The system incorporates a flexible array of electrochemical and photoelectrochemical cells, powered by high‐performance III‐V triple‐junction cells. Remarkably, this method significantly boosts the solar‐to‐hydrogen (STH) conversion efficiency, reaching a record 20.7% under 1 sun illumination, employing earth‐abundant catalysts operating at ambient temperature. These findings highlight extensive scope for further optimization, including minimizing optical transmission losses, mitigating shading effects, and reducing the overpotential of the electrochemical cells, thereby augmenting the STH efficiency to an estimated 28%. Through a comprehensive techno‐economic analysis, a levelized cost of hydrogen (LCOH) of 8.3 USD kg−1 is estimated, forecasting the potential for a reduction to a competitive 1.8 USD kg−1 with improved efficiency, increased capacity factors, and decreased production costs. A sensitivity analysis emphasizes the significant influence of factors such as III‐V cell cost, electrolyzer membrane cost and capacity factor on the LCOH. Overall, this study signifies crucial progress toward a highly efficient and economically viable solar water splitting solution, promising a sustainable route for hydrogen production.

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Section: Computational Analysismentioning

confidence: 99%

Unlocking Ultra‐High Performance in Immersed Solar Water Splitting with Optimised Energetics

Butson,

Sharma,

Tournet

et al. 2023

Advanced Energy Materials

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“…The high performance of these devices is due to mature epitaxial growth techniques and optimally designed current-matched tandem structures. A conversion efficiency over 30% has been achieved under the one-sun air mass 1.5 (AM1.5G) spectra condition using GaInP/GaAs/Ge (or InGaAs) triple-junction (TJ) solar cells [3][4][5]. However, this is too expensive to cost down the III-V solar cells because the underlying Ge substrate or InGaAs epilayer grown on InP substrate is very expensive compared to the cost of Si [6,7].…”

Section: Introductionmentioning

confidence: 99%

GaInP/GaAs/poly-Si Multi-Junction Solar Cells by in Metal Balls Bonding

et al. 2021

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In this study, a mechanical stacking technique has been used to bond together the GaInP/GaAs and poly-silicon (Si) solar wafers. A GaInP/GaAs/poly-Si triple-junction solar cell has mechanically stacked using a low-temperature bonding process which involves micro metal In balls on a metal line using a high-optical-transmission spin-coated glue material. Current–voltage measurements of the GaInP/GaAs/poly-Si triple-junction solar cells have carried out at room temperature both in the dark and under 1 sun with 100 mW/cm2 power density using a solar simulator. The GaInP/GaAs/poly-Si triple-junction solar cell has reached an efficiency of 24.5% with an open-circuit voltage of 2.68 V, a short-circuit current density of 12.39 mA/cm2, and a fill-factor of 73.8%. This study demonstrates a great potential for the low-temperature micro-metal-ball mechanical stacking technique to achieve high conversion efficiency for solar cells with three or more junctions.

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Practical Verification and Comparative Analysis of One- and Two-Diode Models of Space Triple-Junction InGaP2/InGaAs/Ge Solar Cell

Zhao

Yang

et al. 2023

J. Electron. Mater.

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On the optimization of InGaP/GaAs/InGaAs triple-junction solar cell

Cited by 4 publications

References 6 publications

Unlocking Ultra‐High Performance in Immersed Solar Water Splitting with Optimised Energetics

Unlocking Ultra‐High Performance in Immersed Solar Water Splitting with Optimised Energetics

GaInP/GaAs/poly-Si Multi-Junction Solar Cells by in Metal Balls Bonding

Practical Verification and Comparative Analysis of One- and Two-Diode Models of Space Triple-Junction InGaP2/InGaAs/Ge Solar Cell

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