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Lead-free perovskite solar cells

Lead-free perovskite solar cells Lead-free perovskite solar cells M. Künsting/HZB The addition of fluorine additives increases the quality of the perovskite layer. Analyses at BESSY II now show why. Zoom in ).addClass( image-details ); var $imageCaption = $( ).addClass( image-caption ).text(caption); $imageDetails.append($imageCaption); element = $( ).append( × ).append($imageHolder).append($imageDetails)[0]; img.draggable = false; if (title) { element.title = title; } if (altText) { element.alt = altText; } $(img).on( load error , callbackWrapper); img.src = url; return element; } Tin halide perovskites are currently considered the best alternative to le ....

Marion Flatken , Jorge Pascual , Antonio Abate , அன்டோனியோ தாழ்த்து ,

Bleifreie Perowskit-Solarzellen – Wie Fluor-Additive die Qualität verbessern - Sonnenseite - Ökologische Kommunikation mit Franz Alt


27.07.2021
Bleifreie Perowskit-Solarzellen – Wie Fluor-Additive die Qualität verbessern
Zinnhalogenid-Perowskite gelten aktuell als beste Alternative zu den bleihaltigen Analogen, sind jedoch im Vergleich zu diesen noch deutlich weniger effizient und stabil. Nun hat ein Team um Prof. Antonio Abate aus dem HZB die chemischen Prozesse in der Perowskit-Vorläuferlösung und deren Fluoridchemie eingehend analysiert. Durch eine raffinierte Kombination von Messmethoden an BESSY II mit Kernspinresonanz konnten sie zeigen, dass Fluorid die Oxidation von Zinn verhindert, was zu einer homogeneren Filmbildung mit weniger Defekten führt und die Qualität der Halbleiterschicht erhöht.
Blei-Halogenid-Perowskit-Solarzellen versprechen sehr hohe Wirkungsgrade zu geringen Herstellungskosten. Die Toxizität von Blei wirft jedoch ernsthafte Umweltprobleme auf. Die Suche nach bleifreien Alternativen ist in vollem Gang. Zinn gilt derzeit als die beste Wahl, ....

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Lead-free perovskite solar cells - How fluoride additives improve quality - Sonnenseite - Ökologische Kommunikation mit Franz Alt


27.07.2021
Lead-free perovskite solar cells – How fluoride additives improve quality
Tin halide perovskites are currently considered the best alternative to their lead-containing counterparts, which are, however, still significantly less efficient and stable.
Now, a team led by Prof. Antonio Abate from HZB has analysed the chemical processes in the perovskite precursor solution and the fluoride compounds in detail. Using a clever combination of measurement methods at BESSY II and with NMR at the Humboldt-University Berlin, they were able to show that fluoride prevents the oxidation of tin and leads to a more homogeneous film formation with fewer defects, increasing the quality of the semiconductor layer. ....

Marion Flatken , Jorge Pascual , University Berlin , Antonio Abate , Humboldt University Berlin , பல்கலைக்கழகம் பெர்லின் , அன்டோனியோ தாழ்த்து , ஹம்போல்ட் பல்கலைக்கழகம் பெர்லின் ,

Perowskit-Solarzellen: Einsichten in die Frühstadien der Strukturbildung

Mit der Methode der Kleinwinkelstreuung an der PTB-Röntgen-Beamline von BESSY II konnte ein HZB-Team experimentell die kolloidale Chemie von Perowskit-Vorläuferlösungen für Solarzellen untersuchen . ....

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Perovskite Solar Cells: Insights into early stages of structure formation

Perovskite Solar Cells: Insights into early stages of structure formation
chemeurope.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from chemeurope.com Daily Mail and Mail on Sunday newspapers.

Armin Hoell , Marion Flatken , Antonio Abate , Angle Scattering , அன்டோனியோ தாழ்த்து , கோணம் சிதறல் ,