材料科学
钙钛矿(结构)
光伏
带隙
光电子学
沉积(地质)
制作
真空沉积
串联
薄膜
能量转换效率
纳米技术
光伏系统
化学工程
复合材料
电气工程
医学
古生物学
替代医学
病理
沉积物
工程类
生物
作者
Lidón Gil‐Escrig,Isidora Susic,İlker Doğan,Valerio Zardetto,Mehrdad Najafi,Dong Zhang,Sjoerd Veenstra,Salar H. Sedani,Bülent Arıkan,Selçuk Yerci,Henk J. Bolink,Michele Sessolo
标识
DOI:10.1002/adfm.202214357
摘要
Abstract Wide bandgap perovskites are being widely studied in view of their potential applications in tandem devices and other semitransparent photovoltaics. Vacuum deposition of perovskite thin films is advantageous as it allows the fabrication of multilayer devices, fine control over thickness and purity, and it can be upscaled to meet production needs. However, the vacuum processing of multicomponent perovskites (typically used to achieve wide bandgaps) is not straightforward, because one needs to simultaneously control several thermal sources during the deposition. Here a simplified dual‐source vacuum deposition method to obtain wide bandgap perovskite films is shown. The solar cells obtained with these materials have similar or even larger efficiency as those including multiple A‐cations, but are much more thermally stable, up to 3500 h at 85 °C for a perovskite with a bandgap of 1.64 eV. With optimized thickness, record efficiency of >19% and semitransparent devices with stabilized power output in excess of 17% are achieved.
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