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Laminated Perovskite Photovoltaics: Enabling Novel Layer Combinations and Device Architectures

机译：钙钛矿光伏层压板：实现新型的层组合和设备架构

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High-efficiency perovskite-based solar cells can be fabricated via either solution-processing or vacuum-based thin-film deposition. However, both approaches limit the choice of materials and the accessible device architectures, due to solvent incompatibilities or possible layer damage by vacuum techniques. To overcome these limitations, the lamination of two independently processed half-stacks of the perovskite solar cell is presented in this work. By laminating the two half-stacks at an elevated temperature (approximate to 90 degrees C) and pressure (approximate to 50 MPa), the polycrystalline perovskite thin-film recrystallizes and the perovskite/charge transport layer (CTL) interface forms an intimate electrical contact. The laminated perovskite solar cells with tin oxide and nickel oxide as CTLs exhibit power conversion efficiencies of up to 14.6%. Moreover, they demonstrate long-term and high-temperature stability at temperatures of up to 80 degrees C. This freedom of design is expected to access both novel device architectures and pairs of CTLs that remain usually inaccessible.
机译：可以通过固溶处理或基于真空的薄膜沉积来制造基于钙钛矿的高效太阳能电池。但是，由于溶剂的不兼容性或真空技术可能造成的层损坏，两种方法都限制了材料和可访问设备架构的选择。为了克服这些限制，在这项工作中提出了钙钛矿型太阳能电池两个独立处理的半叠层的层压。通过在高温（约90摄氏度）和压力（约50兆帕）下层压两个半电池，多晶钙钛矿薄膜会重结晶，钙钛矿/电荷传输层（CTL）界面形成紧密的电接触。具有氧化锡和氧化镍作为CTL的钙钛矿层压太阳能电池的功率转换效率高达14.6％。此外，它们在高达80摄氏度的温度下具有长期和高温稳定性。这种设计自由度有望同时使用新颖的设备架构和成对的CTL，而这些CTL通常仍然无法访问。

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