Band Gap Engineering of Multi-Junction Solar Cells: Effects of Series Resistances and Solar Concentration

Zeitouny, Joya; Katz, Eugene A.; Dollet, Alain; Vossier, Alexis

doi:10.1038/s41598-017-01854-6

Cited by 50 publications

(24 citation statements)

References 24 publications

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“…Triple-or more-junction designs will allow the development of solar cells in which a larger fraction of photons can be harvested, minimizing voltage losses. Moreover, as pointed out by Zeitouny et al, 129 the combination of E bg of 2.06 eV/1.55 eV/1.17 eV, which are nowadays achievable with perovskite materials, results in optimum performance for ultra-high solar concentration systems.…”

Section: Triple-junction Perovskite Solar Cellsmentioning

confidence: 92%

ABX3 Perovskites for Tandem Solar Cells

Anaya

Lozano

Calvo

et al. 2017

Joule

208

184

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Perovskite solar cells carry the banner for emerging photovoltaics since they have demonstrated power conversion efficiency values well above 20%, which were traditionally only accessible for fairly established technologies such as silicon. Indeed, ABX 3 perovskite materials have revolutionized solar cells due to their ease of processing and outstanding electronic and optical properties, which make them ideal candidates for the development of multi-junction devices aiming to surpass limits associated to stand-alone technologies. In this review we discuss the latest regarding this matter. First, we introduce standard materials and processing techniques involved in the preparation of state-of-the-art perovskite solar cells. We then discuss the development of perovskite-based tandem devices in which ABX 3 perovskite acts as the active material in the top subcell and Si, CIGS, polymer, or ABX 3 act as bottom subcells. Finally, we provide the reader with a discussion on the different lines of research that this rapidly developing field may follow.

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Section: Triple-junction Perovskite Solar Cellsmentioning

confidence: 92%

ABX3 Perovskites for Tandem Solar Cells

Anaya

Lozano

Calvo

et al. 2017

Joule

208

184

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“…Any PV system benefits from a high value of F F . However, in particular, systems that operate under concentration are more sensitive to this parameter (47). When very high electric currents pass in a PV device, its resistance in series becomes the great limiting factor of efficiency, because the power loss by Joule effect in the electrical contacts is very high.…”

Section: Solar Cell Electric Modelmentioning

confidence: 99%

Optimization of contact grids for solar cells with genetic algorithms

Pejendino

Ruiz

Weiner

et al. 2017

2017 32nd Symposium on Microelectronics Technology and Devices (SBMicro)

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First of all, I want to thank my dear mother Gloria, for her love, for believing in me, her wise advice and unconditional support. To my brother Oscar, grandparents, uncles, family, and friends, to all those people who sent me messages of encouragement and energy. To my adviser teacher, Patricia, for the teachings, the motivation, the suggestions and all the contributions to the work. Thanks for all the trust and patience. To the entire Labsem team

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“…In order to simultaneously benefit from the dispatchability of CSP and the high efficiency of CPV, MJ concentrator cells can be integrated with CSP to create a hybrid CPV/CSP station 8–11 . The hybrid receiver exploits sub‐bandgap photons and nominal PV thermalization losses to generate heat from which conventional steam turbines can be driven (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

InGaN/GaN multi‐quantum‐well solar cells under high solar concentration and elevated temperatures for hybrid solar thermal‐photovoltaic power plants

Moses

Huang

Zhao

et al. 2020

Progress in Photovoltaics

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Hybrid solar electricity generation combines the high efficiency of photovoltaics (PVs) with the dispatchability of solar thermal power plants. Recent thermodynamic analyses have shown that the most efficient strategy constitutes an integrated concentrating PV-thermal absorber operating at high solar concentration and at the high temperatures suitable to efficient commercial steam turbines ($673-873 K). The recuperation of PV thermalization losses and the exploitation of sub-bandgap photons can more than compensate for the inherent decrease of PV efficiency with temperature in properly tailored tandem solar cells for which promising candidates are III-N alloys. Recently, there have been considerable efforts to develop apposite InGaN solar cells by producing InGaN/GaN multiple quantum wells (MQWs) as the top cell in a tandem PV device that would absorb the short-wavelength regime of the solar spectrum, while sub-bandgap photons and PV thermalization are absorbed in the thermal receiver. We present measurements of current-voltage curves and external quantum efficiency spectra for InGaN/GaN MQW solar cells under high sunlight intensity, up to 1 W/mm 2 (1000 suns) and elevated temperature, up to 723 K. We find that the short-circuit current increases significantly with temperature, while the magnitude of the temperature coefficient of the open-circuit voltage decreases with solar concentration according to basic photodiode theory. Conversion efficiency peaks at 623-723 K under $300 suns, with no perceptible worsening in cell performance under extensive temperature and irradiance cycling-an encouraging finding in the quest for high-temperature high-irradiance cells. K E Y W O R D S concentrator photovoltaics, efficiency temperature coefficient, hybrid solar thermalphotovoltaic, InGaN/GaN, multiple quantum well 1 | INTRODUCTION Essentially, all large-scale solar electricity production installed to date comprises one of two technologies: concentrated solar power (CSP) or photovoltaics (PVs). In CSP (5.5 GW peak installed as of 2018), 1 concentrated sunlight heats a collector fluid that then generates the steam used in conventional turbines. CSP yearly-average conversion efficiencies ($14-18%) are essentially the same as those achieved by

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Band Gap Engineering of Multi-Junction Solar Cells: Effects of Series Resistances and Solar Concentration

Cited by 50 publications

References 24 publications

ABX3 Perovskites for Tandem Solar Cells

ABX3 Perovskites for Tandem Solar Cells

Optimization of contact grids for solar cells with genetic algorithms

InGaN/GaN multi‐quantum‐well solar cells under high solar concentration and elevated temperatures for hybrid solar thermal‐photovoltaic power plants

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