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Showing 1–3 of 3 results
Advanced filters: Author: Adrian Chirilă Clear advanced filters

  • Compared with their rigid counterparts, thin-film solar cells grown on flexible substrates usually display lower power-conversion efficiencies. Now, the application of a post-deposition alkaline treatment that modifies the chemical composition of the surfaces of Cu(In,Ga)Se2 thin films reduces optical losses in these flexible photovoltaic architectures. Furthermore, efficiencies comparable to solar cells based on polycrystalline silicon are achieved.

    • Adrian Chirilă
    • Patrick Reinhard
    • Ayodhya N. Tiwari
    Research
    Nature Materials
    Volume: 12, P: 1107-1111

  • The use of flexible polymer substrates not only reduces weight and fabrication costs of solar cells, but their bendability also enables new applications. A careful design of Cu(In,Ga)Se2 solar cells grown on polymer substrates now solves earlier fabrication issues, leading to conversion efficiencies matching those grown on rigid substrates.

    • Adrian Chirilă
    • Stephan Buecheler
    • Ayodhya N. Tiwari
    Research
    Nature Materials
    Volume: 10, P: 857-861

  • Flexible CdTe solar cells on metal foil substrates are promising for low-cost roll-to-roll fabrication, but their efficiency is usually low because of their inverted structure. By controlling the doping of the CdTe layer with copper, Kranz et al. show that efficiencies up to 13.6% can be obtained.

    • Lukas Kranz
    • Christina Gretener
    • Ayodhya N. Tiwari
    Research
    Nature Communications
    Volume: 4, P: 1-7