Benzothiadiazole-based photosensitizers for efficient and stable dye-sensitized solar cells and 8.7% efficiency semi-transparent mini-modules

Godfroy, Maxime; Liotier, Johan; Mwalukuku, Valid Mwatati; Joly, Damien O.; Huaulmé, Quentin; Cabau, Lydia; Aumaître, Cyril; Kervella, Yann; Narbey, Stéphanie; Oswald, Frédéric; Palomares, Emilio; Flores, Carlos A. González; Oskam, Gerko; Demadrille, Renaud

doi:10.1039/d0se01345e

Cited by 56 publications

(40 citation statements)

References 51 publications

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“…The poor bifaciality is mainly attributed to the relatively short carrier lifetimes, unfavorable band bending at the rear interface, and high rear surface recombination velocity of polycrystalline CdTe, as illustrated in Figure 4c. [19] Because of the low bifaciality, thin-film PV technologies based on CdTe, [20][21][22][23] CIGS, [24][25][26] organic PV, [27,28] and dye-sensitized solar cells [29,30] have only been considered for flexible, low-weight, semitransparent applications, [17] but have not yet commercialized for high-efficiency bifacial PV modules.…”

Section: Factors Limiting Bifacial Efficiencymentioning

confidence: 99%

Perovskite Solar Cells Go Bifacial—Mutual Benefits for Efficiency and Durability

2021

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PV technologies need to advance further in terms of a substantial increase in PV module power generation, reduction in module prices, and improvement in long-term reliability, eventually realizing low levelized costs of electricity (LCOE) that are compatible with standard electricity prices in the energy market. The PV industry's future development necessitates increased attention to emerging techniques with the potential to achieve high power generation at low costs.Increasing the power output per unit area of solar panels at low additional manufacturing costs is crucial for further lowering the PV-generated electricity price. One of the simplest and inexpensive strategies for increasing the power output density of a solar panel is to harvest reflected and diffuse sunlight from the ground by employing bifacial designs. The concept of bifacial solar cells can date back to the 1960s, but the momentum to bring bifacial solar panels to the market has been gradually realized in the last decade as one of the latest technological advances in PV manufacturing. [4] The mainstream crystalline silicon (c-Si) PV module manufacturers are now producing bifacial silicon solar modules based on different cell technologies. The trend shows that bifacial solar cells and modules are increasingly important in today's PV market and may soon become the cost-effective PV standard. [5] Unlike c-Si solar cells, efficient bifacial designs have not been demonstrated in commercial inorganic thin-film PV technologies because the polycrystalline inorganic thin films suffer from short carrier lifetimes and high rear surface recombination, limiting their bifacial PV performance. Metal halide perovskite solar cells (PSCs) have generated great interest in the PV research and industry, owing to their fast-growing power conversion efficiencies (PCEs), [6] outstanding optoelectronic properties, [7] ease of production, [8] low estimated manufacturing costs, [9] and readiness to take steps toward commercialization. [10] Within a decade, PSCs have rapidly evolved from a newcomer to a leading competitor to rival other established PV technologies.The development of PSCs opens up a golden opportunity to realize efficient bifacial thin-film solar cells. Figure 1 depicts the bifacial architecture for PSCs, summarizes the unique optoelectronic properties of perovskites that enable high bifacial performance, and highlights the advantages of bifacial Bifacial solar cells hold the potential to achieve a higher power output per unit area than conventional monofacial devices without significantly increasing manufacturing costs. However, efficient bifacial designs are challenging to implement in inorganic thin-film solar cells because of their short carrier lifetimes and high rear surface recombination. The emergence of perovskite photovoltaic (PV) technology creates a golden opportunity to realize efficient bifacial thin-film solar cells, owing to their outstanding optoelectronic properties and unique features of device physics. More importantly, transparent cond...

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Section: Factors Limiting Bifacial Efficiencymentioning

confidence: 99%

Perovskite Solar Cells Go Bifacial—Mutual Benefits for Efficiency and Durability

2021

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“…11,12 New generation photovoltaics such as organic solar cells (OSCs) [13][14][15] or dye-sensitized solar cells (DSSCs) 16,17 might be a valid alternative to overcome this drawback. 18,19 The latter, in particular, can represent an ideal solution because they can be layered on glass or plastic, giving coloured, lightweight and transparent devices, 20,21 able to work under a wide array of lighting conditions, without suffering from angular dependence of incident light. 22 A DSSC is an electrochemical device that uses dye molecules adsorbed on a nanocrystalline semiconductor (generally TiO 2 ) to harvest sunlight and generate electricity.…”

Section: Introductionmentioning

confidence: 99%

D–A–π–A organic dyes with tailored green light absorption for potential application in greenhouse-integrated dye-sensitized solar cells

Dessì

Chalkias

Bilancia

et al. 2021

Sustainable Energy Fuels

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“…31 BTD is an electron-decient unit, widely used in the synthesis of dyes for DSSCs, since it increases the push-pull effect in the dye structure, thus shiing the internal charge transfer (ICT) absorption band towards longer wavelengths and improving the spatial separation of HOMO and LUMO orbitals. 32,33 In this work, our goal was to evaluate the potential of the IDT-BTD chromophore for the preparation of dye-catalysts assemblies specically designed for photoelectrochemical hydrogen production. To this purpose, we embedded a benzothiadiazole unit in a D-p-A type chemical structure, and the resulting dye was later covalently assembled with the hydrogenevolving cobalt diimine dioxime catalyst.…”

Section: Introductionmentioning

confidence: 99%

Push–pull organic dyes and dye-catalyst assembly featuring a benzothiadiazole unit for photoelectrochemical hydrogen production

Moinel

Brochnow

Aumaître

et al. 2022

Sustainable Energy Fuels

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Benzothiadiazole-based photosensitizers for efficient and stable dye-sensitized solar cells and 8.7% efficiency semi-transparent mini-modules

Abstract: New benzothiadiazole-based dyes are synthesized, characterized and used for the fabrication of robust and efficient solar cells and mini-modules.

Cited by 56 publications

References 51 publications

Perovskite Solar Cells Go Bifacial—Mutual Benefits for Efficiency and Durability

Perovskite Solar Cells Go Bifacial—Mutual Benefits for Efficiency and Durability

D–A–π–A organic dyes with tailored green light absorption for potential application in greenhouse-integrated dye-sensitized solar cells

Push–pull organic dyes and dye-catalyst assembly featuring a benzothiadiazole unit for photoelectrochemical hydrogen production

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