Epitaxial Cu 2 ZnSnSe 4  thin films and devices

Redinger, Alex; Groiß, Heiko; Sendler, Jan; Djemour, Rabie; Regesch, David; Gerthsen, D.; Siebentritt, Susanne

doi:10.1016/j.tsf.2014.11.040

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…In the context of CZTSe solar cells, the presence of secondary phases, notably ZnSe and MoSe 2 , poses challenges related to increased series resistance, potentially impeding the efficient flow of current [141,142]. SnSe 2 adversely impacted solar cell performance by diminishing shunt resistance [112].…”

Section: Influence Of Secondary Phases On the Solar Device Efficiencymentioning

confidence: 99%

Recent Progress and Challenges in Controlling Secondary Phases in Kesterite CZT(S/Se) Thin Films: A Critical Review

Zaki,

Velea

2024

Energies

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Kesterite-based copper zinc tin sulfide (CZTS) and copper zinc tin selenide (CZTSe) thin films have attracted considerable attention as promising materials for sustainable and cost-effective thin-film solar cells. However, the successful integration of these materials into photovoltaic devices is hindered by the coexistence of secondary phases, which can significantly affect device performance and stability. This review article provides a comprehensive overview of recent progress and challenges in controlling secondary phases in kesterite CZTS and CZTSe thin films. Drawing from relevant studies, we discuss state-of-the-art strategies and techniques employed to mitigate the formation of secondary phases. These include a range of deposition methods, such as electrodeposition, sol-gel, spray pyrolysis, evaporation, pulsed laser deposition, and sputtering, each presenting distinct benefits in enhancing phase purity. This study highlights the importance of employing various characterization techniques, such as X-ray diffraction, Raman spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy, for the precise identification of secondary phases in CZTS and CZTSe thin films. Furthermore, the review discusses innovative strategies and techniques aimed at mitigating the occurrence of secondary phases, including process optimization, compositional tuning, and post-deposition treatments. These approaches offer promising avenues for enhancing the purity and performance of kesterite-based thin-film solar cells. Challenges and open questions in this field are addressed, and potential future research directions are proposed. By comprehensively analyzing recent advancements, this review contributes to a deeper understanding of secondary phase-related issues in kesterite CZT(S/Se) thin films, paving the way for enhanced performance and commercial viability of thin-film solar cell technologies.

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Section: Influence Of Secondary Phases On the Solar Device Efficiencymentioning

confidence: 99%

Recent Progress and Challenges in Controlling Secondary Phases in Kesterite CZT(S/Se) Thin Films: A Critical Review

Zaki,

Velea

2024

Energies

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“…Previously epitaxial thin films were grown by molecular beam epitaxy 5,6 on gallium arsenide (001) (GaAs) substrates. GaAs was chosen for epitaxial growth because the lattice mismatch between CZTSe and the substrate is about only 0:6 %.…”

Section: Introductionmentioning

confidence: 99%

Photoluminescence studies in epitaxial CZTSe thin films

Sendler

Thevenin

Werner

et al. 2016

Journal of Applied Physics

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Epitaxial Cu 2 ZnSnSe 4 (CZTSe) thin films were grown by molecular beam epitaxy on GaAs(001) using two different growth processes, one containing an in-situ annealing stage as used for solar cell absorbers and one for which this step was omitted. Photoluminescences (PL) measurements carried out on these samples show no dependence of the emission shape on the excitation intensity at different temperatures ranging from 4 K to 300 K. To describe the PL measurements, we employ a model with fluctuating band edges in which the density of states of the resulting tail states does not seem to depend on the excited charge carrier density. In this interpretation, the PL measurements show that the annealing stage removes a defect level, which is present in the samples without this annealing. Published by AIP Publishing. [http://dx

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Characterization of infrared transmittance in mixed transition metal oxides for solar cells application

Tsai

Fung

2017

Ceramics International

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Epitaxial Cu 2 ZnSnSe 4 thin films and devices

Cited by 5 publications

References 19 publications

Recent Progress and Challenges in Controlling Secondary Phases in Kesterite CZT(S/Se) Thin Films: A Critical Review

Recent Progress and Challenges in Controlling Secondary Phases in Kesterite CZT(S/Se) Thin Films: A Critical Review

Photoluminescence studies in epitaxial CZTSe thin films

Characterization of infrared transmittance in mixed transition metal oxides for solar cells application

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