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Showing 1–2 of 2 results
Advanced filters: Author: Conrad Spindler Clear advanced filters

  • Anion vacancies are a hurdle for technologies based on chalcogenide semiconductors and topological insulators. Even at room temperature, oxidation and cyanide etching can lead to selenium vacancies in CuInSe2 photovoltaic material but suitable post deposition treatments can mitigate their effect.

    • Diego Colombara
    • Hossam Elanzeery
    • Susanne Siebentritt
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-14

  • Sodium doping is necessary to achieve high performance in polycrystalline chalcopyrite solar cells, but retards gallium interdiffusion, and thus efficiency optimisation. Here, Colombara et al. show that in contrast to the polycrystalline case, sodium accelerates atomic interdiffusion in monocrystalline samples.

    • Diego Colombara
    • Florian Werner
    • Susanne Siebentritt
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-12