文章基本信息

标题：Highly porous Zinc Stannate (Zn2SnO4) nanofibers scaffold photoelectrodes for efficient methyl ammonium halide perovskite solar cells
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作者：Sawanta S. Mali ; Chang Su Shim ; Chang Kook Hong 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2015
卷号：5
期号：1
DOI：10.1038/srep11424
语种：English
出版社：Springer Nature
摘要：Development of ternary metal oxide (TMO) based electron transporting layer (ETL) for perovskite solar cell open a new approaches toward efficient a unique strategy for solid state dye-sensitized solar cells (ssDSSCs). In the present investigation, highly porous zinc tin oxide (Zn₂SnO₄) scaffold nanofibers has been synthesized by electrospinning technique and successfully used for methyl ammonium lead halide (CH₃NH₃PbI₃) perovskite sensitized solid state solar cells. The fabricated optimized perovskite solar cell devices exhibited 7.38% power conversion efficiency (PCE) with open circuit voltage (V_OC) 0.986 V, current density (J_SC) = 12.68 mAcm^-2 and fill factor (FF) 0.59 under AM 1.5 G sunlight (100 mWcm⁻²) which is higher than Zn₂SnO₄ nanoparticle (η = 2.52%) based perovskite solar cells. This improvement is achieved due to high porosity of Zn₂SnO₄ nanofibers and high crystallinity of the nanofibers synthesized at 700 °C. These results are remarkably higher than reported perovskite solar cells based on such type of ternary metal oxide ETLs.