Lidón Gil‐Escrig; Chris Dreeßen; Francisco Palazón; Zafer Hawash; Ellen Moons; Steve Albrecht; Michele Sessolo; Henk J. Bolink · 2021 · ACS Energy Letters
Paper
allows the relative Br/Cs content to be decoupled and controlled, resulting in homogeneous perovskite films with a bandgap in the 1.7-1.8 eV range and no detectable halide segregation. Solar cells based on 1.75 eV bandgap perovskites show efficiency up to 16.8% and promising stability, maintaining 90% of the initial efficiency after 2 weeks of operation.
Analysis
This paper presents a vacuum deposition method for creating homogeneous wide-bandgap perovskite films with controlled Br/Cs content, achieving solar cells with up to 16.8% efficiency and good stability.
Discovery
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