文章基本信息

标题：Oblique Electrostatic Inkjet-Deposited TiO2 Electron Transport Layers for Efficient Planar Perovskite Solar Cells
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作者：Shahiduzzaman ; Toshiharu Sakuma ; Tetsuya Kaneko 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2019
卷号：9
期号：1
页码：1-8
DOI：10.1038/s41598-019-56164-w
出版社：Springer Nature
摘要：In this study, a new, simple, and novel oblique electrostatic inkjet (OEI) technique is developed to deposit a titanium oxide (TiO 2 ) compact layer (CL) on fluorine-doped tin oxide (FTO) substrate without the need for a vacuum environment for the first time. The TiO 2 is used as electron transport layers (ETL) in planar perovskite solar cells (PSCs). This bottom-up OEI technique enables the control of the surface morphology and thickness of the TiO 2 CL by simply manipulating the coating time. The OEI-fabricated TiO 2 is characterized tested and the results are compared with that of TiO 2 CLs produced by spin-coating and spray pyrolysis. The OEI-deposited TiO 2 CL exhibits satisfactory surface coverage and smooth morphology, conducive for the ETLs in PSCs. The power-conversion efficiencies of PSCs with OEI-deposited TiO 2 CL as the ETL were as high as 13.19%. Therefore, the present study provides an important advance in the effort to develop simple, low-cost, and easily scaled-up techniques. OEI may be a new candidate for depositing TiO 2 CL ETLs for highly efficient planar PSCs, thus potentially contributing to future mass production.