Ultrathin wide band gap kesterites

Platzer‐Björkman, Charlotte; Larsen, Jes K.; Saini, Nishant; Babucci, Melike; Martin, Natalia

doi:10.1039/d2fd00052k

Faraday Discuss.

2022

DOI: 10.1039/d2fd00052k

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Ultrathin wide band gap kesterites

Charlotte Platzer‐Björkman

Jes K. Larsen

Nishant Saini

et al.

Abstract: Kesterite Cu2ZnSnS4 (CZTS), used for thin film solar cells, has a band gap energy around 1.5-1.6 eV with possibilities for further increase through alloying. In some applications for wide band...

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Cited by 5 publications

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Effects of Al₂O₃ Rear Interface Passivation on the Performance of Bifacial Kesterite‐Based Solar Cells with Fluorine‐Doped Tin Dioxide Back Contact

Sawa,

Babucci,

Keller

et al. 2024

Physica Status Solidi (b)

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Herein, ultrathin Al2O3 is investigated as a rear interface passivation layer for kesterite solar cells with F:SnO2 (FTO) back contact for potential performance improvement. On the passivation layer, a thin Mo layer is deposited to improve the FTO's ohmicity. Further, NaF is evaporated on the copper zinc tin sulfide (CZTS) precursors to create openings at the passivation layer and achieve Na‐induced benefits in the absorber. The CZTS absorbers deposited directly on the Al2O3‐coated FTO peel off, while those with Mo interlayer do not. For pure sulfide kesterite devices, the Al2O3 layer reduces the short‐circuit current density (JSC), resulting in poor device efficiency. On the other hand, significantly higher JSC is realized for mixed sulfide and selenide kesterite devices with Al2O3 passivation layer, with the current density–voltage curve suggesting a reduced barrier height at the rear interface. As a result, the efficiency is improved from 1.5% for devices without Al2O3 to 4.6% for those with Al2O3. Likewise, improved external quantum efficiency response is observed in the devices with passivation layer for backside and frontside illumination. Therefore, contribution of Al2O3 passivation layer to the performance of kesterite‐based solar cells is evident from the results of this study.

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Effects of Al₂O₃ Rear Interface Passivation on the Performance of Bifacial Kesterite‐Based Solar Cells with Fluorine‐Doped Tin Dioxide Back Contact

Sawa,

Babucci,

Keller

et al. 2024

Physica Status Solidi (b)

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Recent progress in CZTS (CuZnSn sulfide) thin-film solar cells: a review

Paul,

Shukla,

Lenka

et al. 2024

J Mater Sci: Mater Electron

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Enhanced performance of Cu2ZnSnS4 based bifacial solar cells with FTO and W/FTO back contacts through absorber air annealing and Na incorporation

Sawa,

Babucci,

Donzel-Gargand

et al. 2024

Solar Energy Materials and Solar Cells

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Ultrathin wide band gap kesterites

Abstract: Kesterite Cu2ZnSnS4 (CZTS), used for thin film solar cells, has a band gap energy around 1.5-1.6 eV with possibilities for further increase through alloying. In some applications for wide band...

Cited by 5 publications

References 38 publications

Effects of Al₂O₃ Rear Interface Passivation on the Performance of Bifacial Kesterite‐Based Solar Cells with Fluorine‐Doped Tin Dioxide Back Contact

Effects of Al₂O₃ Rear Interface Passivation on the Performance of Bifacial Kesterite‐Based Solar Cells with Fluorine‐Doped Tin Dioxide Back Contact

Recent progress in CZTS (CuZnSn sulfide) thin-film solar cells: a review

Enhanced performance of Cu2ZnSnS4 based bifacial solar cells with FTO and W/FTO back contacts through absorber air annealing and Na incorporation

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Ultrathin wide band gap kesterites

Abstract: Kesterite Cu2ZnSnS4 (CZTS), used for thin film solar cells, has a band gap energy around 1.5-1.6 eV with possibilities for further increase through alloying. In some applications for wide band...

Cited by 5 publications

References 38 publications

Effects of Al2O3 Rear Interface Passivation on the Performance of Bifacial Kesterite‐Based Solar Cells with Fluorine‐Doped Tin Dioxide Back Contact

Effects of Al2O3 Rear Interface Passivation on the Performance of Bifacial Kesterite‐Based Solar Cells with Fluorine‐Doped Tin Dioxide Back Contact

Recent progress in CZTS (CuZnSn sulfide) thin-film solar cells: a review

Enhanced performance of Cu2ZnSnS4 based bifacial solar cells with FTO and W/FTO back contacts through absorber air annealing and Na incorporation

Contact Info

Product

Resources

About

Effects of Al₂O₃ Rear Interface Passivation on the Performance of Bifacial Kesterite‐Based Solar Cells with Fluorine‐Doped Tin Dioxide Back Contact

Effects of Al₂O₃ Rear Interface Passivation on the Performance of Bifacial Kesterite‐Based Solar Cells with Fluorine‐Doped Tin Dioxide Back Contact