Defect-tolerant Solar Cell Materials: Putting Grain Boundaries to Work in Thin Film Chalcopyrite Solar Cells

Description: Das Projekt "Defect-tolerant Solar Cell Materials: Putting Grain Boundaries to Work in Thin Film Chalcopyrite Solar Cells" wird vom Umweltbundesamt gefördert und von Helmholtz-Zentrum Berlin für Materialien und Energie GmbH durchgeführt. The project aims at improving the understanding of the physical properties of individual grain boundaries in next generation Cu-chalcopyrite solar cell materials. The role of grain boundaries will be studied by scanning probe microscopy methods and ways to improve grain boundary limited device effciencies will be invetsigated. Kelvin probe force microscopy (KPFM) will be used to quantify charges located at grain boundaries. In addition to experimental work also simulations are required to obtain quantitative results. Two ultrahigh vacuum (UHV) KPFM will beused, one working at low temperatures and one connected to an in-situ UHV physical vapor deposition system for growth of clean sample surfaces, enhanced by conductive AFM for electrical grain boundary characterization. The controlled manipulation of grain boundary properties, for example by chemical treatment or by adjustment of growth conditions (i. e. preferred film orientation) will also addressed. Obtaind results from KPFM and c-AFM characterization will help improving the understanding of the role of grain boundaries. Investigated strategies for their passivation might improve solar cell device efficiencies.

Types:

SupportProgram

Origin: /Bund/UBA/UFORDAT

Tags: Getreide ? Kupfer ? Werkstoff ? Berlin ? Brüden ? Solarzelle ? Materialprüfung ? Mikroskopie ? Solartechnik ? Temperatur ? Gebühr ? Energie ? Quantitative Analyse ? Simulation ? Werkstoffkunde ? Wirkungsgrad ? Deposition ? Chemische Aufbereitung ? in situ ? Schadensregulierung ? Physikalische Größe ? Effizienzsteigerung ?

Region: Berlin

Bounding box: 10.44987° .. 10.44987° x 54.03573° .. 54.03573°

License: cc-by-nc-nd/4.0

Language: Deutsch

Organisations

• Bundesministerium für Umwelt, Naturschutz, nukleare Sicherheit und Verbraucherschutz (Bereitsteller*in)
• Hebrew University of Jerusalem (Mitwirkende)
• Helmholtz-Zentrum Berlin für Materialien und Energie GmbH (Betreiber*in)
• The Weizmann Institute of Science (Mitwirkende)
• Umweltbundesamt (Bereitsteller*in)
• University Tel-Aviv (Mitwirkende)

Time ranges: 2008-03-01 - 2011-08-31

Alternatives

• Language: Englisch/English https://ufordat.uba.de/

Resources

• Webseite zum Förderprojekt

  https://www.tib.eu/de/filter?repno=0327559H (Webseite)

Status

Aktiv

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