Innovative back-contact for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:mrow><mml:mi>S</mml:mi><mml:msub><mml:mi>b</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mi>S</mml:mi><mml:msub><mml:mi>e</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>-based thin film solar cells

Pasini, Stefano; Spoltore, Donato; Parisini, A.; Marchionna, Stefano; Fornasini, Laura; Bersani, Danilo; Fornari, Roberto; Bosio, A.

doi:10.1016/j.solener.2022.11.049

Cited by 4 publications

(4 citation statements)

References 45 publications

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“…Pasini et al [98] investigated a Fe-S-O HTL deposited at RT by RF-MS. The solar cell structure Sb 2 Se 3 /ZnCdS/glass with contact strips of Fe-S-O covered by Au was reported with a PCE between 5% and 6%.…”

Section: Htlsmentioning

confidence: 99%

Advances on Sb2Se3 Solar Cells Fabricated by Physical Vapor Deposition Techniques

Jakomin,

Rampino,

Spaggiari

et al. 2023

Solar

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Sb2Se3, as an earth-abundant and low-toxic material, has emerged as one of the most interesting absorbers for clean renewable power generation technologies. Due to its optical properties, especially bandgap and absorption coefficient, the number of papers on Sb2Se3-based solar cells has been constantly increasing in the last ten years, and its power conversion efficiency has raised from 1% in 2014 to 10.57% in 2022. In this review, different Sb2Se3 solar cells’ fabrication technologies based on physical vapor deposition are described and correlated to the texture coefficient (ribbon orientation). Moreover, recent research works of the most promising solar cell configurations with different electron-transporting layers and hole-transporting layers are analyzed with a special emphasis on photovoltaic performances. Furthermore, different Sb2Se3 doping techniques are discussed. All these aspects are considered as new strategies to overcome the Sb2Se3 solar cell’s actual limitations.

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Section: Htlsmentioning

confidence: 99%

Advances on Sb2Se3 Solar Cells Fabricated by Physical Vapor Deposition Techniques

Jakomin,

Rampino,

Spaggiari

et al. 2023

Solar

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“…Subsequently, the absorber layer is deposited, and finally, the back contact completes the device, which can include a hole transporting layer (HTL), e.g., Spiro-OMeTAD [134] or P3HT [135]. Alternatively, a highly conductive layer such as Fe-S-O [70], NiO x [136] and WO 3−x [68] can be used. In this configuration, the light is incoming from the substrate; consequently, only highly transparent substrates can be used.…”

Section: Device Configurationsmentioning

confidence: 99%

“…Moreover, the alignment of the energy bands and time stability are not the only characteristics to be taken into consideration but also the non-toxicity and abundance of the constituent elements, ease of end-of-life recycling, the low cost and the simplicity of the preparation process are some of the main requirements needed for a good hole transport material (HTM). A lot of attempts were made by using PbS quantum dots [58], CuSCN [165], PEDOT [166], spiro-OMeTAD [167] and FeSO [70] as HTMs, but none of these attempts seemed definitive, and there is still a long way to go to find a fully satisfactory contact. In fact, very frequently, the surface of antimony selenide polycrystalline films is slightly oxidized due to some passage in air, or there are unsaturated bonds due to Sb-rich conditions.…”

Section: Reducing Recombination Lossesmentioning

confidence: 99%

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A Review on the Fundamental Properties of Sb2Se3-Based Thin Film Solar Cells

Bosio,

Foti,

Pasini

et al. 2023

Energies

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There has been a recent surge in interest toward thin film-based solar cells, specifically new absorber materials composed by Earth-abundant and non-toxic elements. Among these materials, antimony selenide (Sb2Se3) is a good candidate due to its peculiar properties, such as an appropriate bandgap that promises a theoretical maximum power conversion efficiency of 33% and an absorption coefficient of around 105 cm−1, enabling its use as a thin film absorber layer. However, charge carrier transport has been revealed to be problematic due to its cumbersome structure and the lack of a doping strategy. In this work, we aim to provide a clear picture of the state-of-the-art regarding research on Sb2Se3-based solar cells and its prospects, from the successful achievements to the challenges that are still to be overcome. We also report on the key parameters of antimony selenide with a close focus on the different characteristics associated with films grown from different techniques.

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Optimizing Crystal Orientation and Defect Mitigation in Antimony Selenide Thin‐Film Solar Cells through Buffer Layer Energy Band Adjustment

Yang,

Zhang,

Zhu

et al. 2024

Small

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Antimony selenide (Sb2Se3) has sparked significant interest in high‐efficiency photovoltaic applications due to its advantageous material and optoelectronic properties. In recent years, there has been considerable development in this area. Nonetheless, defects and suboptimal [hk0] crystal orientation expressively limit further device efficiency enhancement. This study used Zinc (Zn) to adjust the interfacial energy band and strengthen carrier transport. For the first time, it is discovered that the diffusion of Zn in the cadmium sulfide (CdS) buffer layer can affect the crystalline orientation of the Sb2Se3 thin films in the superstrate structure. The effect of Zn diffusion on the morphology of Sb2Se3 thin films with CdxZn1‐xS buffer layer has been investigated in detail. Additionally, Zn doping promotes forming Sb2Se3 thin films with the desired [hk1] orientation, resulting in denser and larger grain sizes which will eventually regulate the defect density. Finally, based on the energy band structure and high‐quality Sb2Se3 thin films, this study achieves a champion power conversion efficiency (PCE) of 8.76%, with a VOC of 458 mV, a JSC of 28.13 mA cm−2, and an FF of 67.85%. Overall, this study explores the growth mechanism of Sb2Se3 thin films, which can lead to further improvements in the efficiency of Sb2Se3 solar cells.

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Innovative back-contact for Sb2Se3-based thin film solar cells

Cited by 4 publications

References 45 publications

Advances on Sb2Se3 Solar Cells Fabricated by Physical Vapor Deposition Techniques

Advances on Sb2Se3 Solar Cells Fabricated by Physical Vapor Deposition Techniques

A Review on the Fundamental Properties of Sb2Se3-Based Thin Film Solar Cells

Optimizing Crystal Orientation and Defect Mitigation in Antimony Selenide Thin‐Film Solar Cells through Buffer Layer Energy Band Adjustment

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