纳米
图层(电子)
钙钛矿(结构)
佩多:嘘
材料科学
聚苯乙烯磺酸盐
旋涂
聚苯乙烯
氧化铟锡
涂层
能量转换效率
光电子学
纳米技术
复合材料
化学工程
聚合物
工程类
作者
Sergio Castro‐Hermosa,Luana Wouk,Izabela Silva Bicalho,Luiza de Queiroz Corrêa,Bas de Jong,Lucio Cinà,Thomas M. Brown,Diego Bagnis
出处
期刊:Nano Research
[Springer Nature]
日期:2020-11-06
卷期号:14 (4): 1034-1042
被引量:34
标识
DOI:10.1007/s12274-020-3147-4
摘要
Fully printed perovskite solar cells (PSCs) were fabricated in air with all constituent layers, except for electrodes, deposited by the blade coating technique. The PSCs incorporated, for the first time, a nanometer-thick printed bathocuproine (BCP) hole blocking buffer using blade coating and deposited at relative humidity up to 50%. The PSCs with a p-i-n structure (glass/indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS)/CH3NH3PbI3/[6,6]-phenyl-C61-butyric acid methyl ester (PCBM)/BCP/Ag) delivered a maximum power conversion efficiency (PCE) of 14.9% on an active area of 0.5 cm2 when measured under standard test conditions. The PSCs with a blade coated BCP delivered performance of 10% and 63% higher (in relative terms) than those incorporating a spin coated BCP or without any BCP film, respectively. The atomic force microscopy (AFM) showed that blade coated films were more homogeneous and acted also as a surface planarizer leading to a reduction of roughness which improved BCP/Ag interface lowering charge recombination. The demonstration of 15% efficient devices with all constituent layers, including nanometer-thick BCP (∼ 10 nm), deposited by blade coating in air, demonstrates a route for industrialization of this technology.
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