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Hysteresis-Free Lead-Free Double-Perovskite Solar Cells by Interface Engineering
ACS Energy Letters ( IF 19.3 ) Pub Date : 2018-06-26 00:00:00 , DOI: 10.1021/acsenergylett.8b00871 Martina Pantaler 1, 2 , Kyung Taek Cho 1 , Valentin I. E. Queloz 1 , Inés García Benito 1 , Christian Fettkenhauer 2 , Irina Anusca 2 , Mohammad Khaja Nazeeruddin 1 , Doru C. Lupascu 2 , Giulia Grancini 1
ACS Energy Letters ( IF 19.3 ) Pub Date : 2018-06-26 00:00:00 , DOI: 10.1021/acsenergylett.8b00871 Martina Pantaler 1, 2 , Kyung Taek Cho 1 , Valentin I. E. Queloz 1 , Inés García Benito 1 , Christian Fettkenhauer 2 , Irina Anusca 2 , Mohammad Khaja Nazeeruddin 1 , Doru C. Lupascu 2 , Giulia Grancini 1
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Hybrid perovskite solar cells have been creating considerable excitement in the photovoltaic community. However, they still rely on toxic elements, which impose severe limits on their commercialization. Lead-free double hybrid perovskites in the form of Cs2AgBiBr6 have been shown to be a promising nontoxic and highly stable alternative. Nevertheless, device development is still in its infancy, and performance is affected by severe hysteresis. Here we realize for the first time hysteresis-free mesoporous double-perovskite solar cells with no s-shape in the device characteristic and increased device open-circuit voltage. This has been realized by fine-tuning the material deposition parameters, enabling the growth of a highly uniform and compact Cs2AgBiBr6, and by engineering the device interfaces by screening different molecular and polymeric hole-transporting materials. Our work represents a crucial step forward in lead-free double perovskites with significant potential for closing the gap for their market uptake.
中文翻译：
接口工程公司的无磁滞无铅双钙钛矿太阳能电池
混合钙钛矿太阳能电池在光伏界引起了极大的兴趣。但是，它们仍然依赖有毒元素，这对它们的商业化提出了严格的限制。Cs 2 AgBiBr 6形式的无铅双重杂化钙钛矿已被证明是一种有前途的无毒且高度稳定的替代物。尽管如此，设备开发仍处于起步阶段，并且性能会受到严重的滞后影响。在这里，我们首次实现了器件特性没有s形且器件开路电压增加的无磁滞介孔双钙钛矿型太阳能电池。这是通过微调材料沉积参数来实现的，从而能够生长高度均匀且致密的Cs 2AgBiBr 6，并通过筛选不同的分子和聚合物空穴传输材料来设计设备接口。我们的工作代表了无铅双钙钛矿向前迈出的关键一步，无铅双钙钛矿在弥合其市场占有率方面具有巨大潜力。
更新日期：2018-06-26
中文翻译：
接口工程公司的无磁滞无铅双钙钛矿太阳能电池
混合钙钛矿太阳能电池在光伏界引起了极大的兴趣。但是，它们仍然依赖有毒元素，这对它们的商业化提出了严格的限制。Cs 2 AgBiBr 6形式的无铅双重杂化钙钛矿已被证明是一种有前途的无毒且高度稳定的替代物。尽管如此，设备开发仍处于起步阶段，并且性能会受到严重的滞后影响。在这里，我们首次实现了器件特性没有s形且器件开路电压增加的无磁滞介孔双钙钛矿型太阳能电池。这是通过微调材料沉积参数来实现的，从而能够生长高度均匀且致密的Cs 2AgBiBr 6，并通过筛选不同的分子和聚合物空穴传输材料来设计设备接口。我们的工作代表了无铅双钙钛矿向前迈出的关键一步，无铅双钙钛矿在弥合其市场占有率方面具有巨大潜力。
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