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  4. Ambient Air Blade-Coating Fabrication of Stable Triple-Cation Perovskite Solar Modules by Green Solvent Quenching
 
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2021
  • Zeitschriftenaufsatz

Titel

Ambient Air Blade-Coating Fabrication of Stable Triple-Cation Perovskite Solar Modules by Green Solvent Quenching

Abstract
Although halide perovskite solar cell (PSC) technology reaches, in few years, efficiencies greater than 25%, the cost-ceffective perspective is achievable only if scalable processes in real manufacturing conditions (i.e., pilot line and/or plant factory) are designed and optimized for the full device stack. Herein, a full semiautomatic scalable process based on the blade-coating technique is demonstrated to fabricate perovskite solar modules in ambient conditions. An efficient and stable triple-cation cesium methylammonium formamidinium (CsMAFA) perovskite is deposited in ambient air with a two-step process assisted by air and green anti-solvent quenching. The developed industry compatible coating process enables the fabrication of several highly reproducible small-area cells on module size substrate with an efficiency exceeding 17% and with high reproducibility. Corresponding reproducible modules (less than 2% variability) with a 90% geometrical fill factor achieve an efficiency larger than 16% and T 80 = 750 h in light-soaking condition at maximum power point and room temperature/ambient after encapsulation. Film deposition properties are assessed by different characterization techniques, namely, scanning electron microscopy, profilometry, UV-vis and photoluminescence (PL) spectroscopy, and PL and electroluminescence imaging. The techniques confirm less defects and local coating variations of the ambient air/bladed devices with respect to the nitrogen air/spinned devices.
Author(s)
Vesce, L.
Stefanelli, M.
Herterich, J.P.
Castriotta, L.A.
Kohlstädt, M.
Würfel, U.
Carlo, A. Di
Zeitschrift
Solar RRL
Thumbnail Image
DOI
10.1002/solr.202100073
Language
Englisch
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ISE
Tags
  • Photovoltaik

  • air blade-coating

  • perovskites

  • PV-modules

  • solvent quenching

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