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Perovskite Solar Cells with All‐Inkjet‐Printed Absorber and Charge Transport Layers
Advanced Materials Technologies ( IF 6.8 ) Pub Date : 2020-07-01 , DOI: 10.1002/admt.202000271
Fabian Schackmar 1, 2, 3 , Helge Eggers 1, 2, 3 , Markus Frericks 2, 4 , Bryce S. Richards 1, 3 , Uli Lemmer 1, 2, 3 , Gerardo Hernandez‐Sosa 1, 2 , Ulrich W. Paetzold 1, 3
Affiliation  

One of the key challenges of perovskite photovoltaics is the scalable fabrication of high‐efficiency perovskite solar cells (PSCs). Not only the scalable deposition of high‐quality perovskite thin‐films itself, but also the adjacent charge extraction layers is pivotal. In this work, PSCs based on all‐inkjet‐printed absorber and extraction layers are presented, allowing for a scalable and material‐efficient deposition. The inkjet‐printed PSCs are of p–i–n‐architecture with a precursor‐based nickel oxide hole‐transport layer, a high‐quality inkjet‐printed triple‐cation (methylammonium, formamidinium, and cesium) perovskite absorber layer and a double layer electron‐transport layer of phenyl‐C61‐butyric acid methyl ester and bathocuproine. The ink properties, inkjet parameters, and annealing procedure are optimized for each layer. PSCs with such inkjet‐printed absorber and charge carrier extraction layers demonstrate an efficiency of >17% with low hysteresis. Although printed in ambient atmosphere, the devices show excellent short‐term stability (40 h) even under elevated temperature (85 °C). These results are a promising next step on the way to fully inkjet‐printed perovskite solar cells, including both electrodes as well.

中文翻译:

带有全喷墨印刷吸收层和电荷传输层的钙钛矿太阳能电池

钙钛矿光伏电池的主要挑战之一是高效钙钛矿太阳能电池(PSC)的可扩展制造。不仅高质量钙钛矿薄膜本身的可扩展沉积,而且相邻的电荷提取层也至关重要。在这项工作中,提出了基于全喷墨打印吸收层和提取层的PSC,从而实现了可扩展且材料高效的沉积。喷墨打印的PSC为p–i–n体系结构,具有前体基氧化镍空穴传输层,高质量的喷墨打印的三阳离子(甲基铵,甲ami和铯)钙钛矿吸收层和一个双层苯基-C61-丁酸甲酯和浴铜的电子传输层。油墨特性,喷墨参数和退火程序针对每一层进行了优化。具有此类喷墨打印的吸收体和电荷载流子提取层的PSC的效率高,滞后性低,> 17%。尽管在环境大气中印刷,但这些器件即使在高温(85°C)下也显示出出色的短期稳定性(40 h)。这些结果是在完全喷墨印刷钙钛矿型太阳能电池(包括两个电极)方面迈出的有希望的下一步。
更新日期:2020-07-01
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