Department of Physics & Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield, S3 7RH, UK.
CREST, Wolfson School, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK.
Sci Rep. 2017 Aug 11;7(1):7962. doi: 10.1038/s41598-017-08642-2.
We utilise spray-coating under ambient conditions to sequentially deposit compact-TiO, mesoporous-TiO, CHNHPbICl perovskite and doped spiro-OMeTAD layers, creating a mesoporous standard architecture perovskite solar cell (PSC). The devices created had an average power conversion efficiency (PCE) of 9.2% and a peak PCE of 10.2%; values that compare favourably with control-devices fabricated by spin-casting that had an average efficiency of 11.4%. We show that our process can be used to create devices having an active-area of 1.5 cm having an independently verified efficiency of 6.6%. This work demonstrates the versatility of spray-coating as well as its potential as a method of manufacturing low-cost, large-area, efficient perovskite devices.
我们利用环境条件下的喷雾涂层技术，顺序沉积致密 TiO2、介孔 TiO2、CHNHPbICl 钙钛矿和掺杂 spiro-OMeTAD 层，构建介孔标准结构钙钛矿太阳能电池（PSC）。所制备的器件的平均功率转换效率（PCE）为 9.2%，峰值 PCE 为 10.2%；与通过旋涂制备的对照器件相比，这是一个很有优势的数值，后者的平均效率为 11.4%。我们表明，我们的工艺可以用于制备具有 1.5 平方厘米有效面积的器件，其经独立验证的效率为 6.6%。这项工作证明了喷雾涂层的多功能性及其作为制造低成本、大面积、高效钙钛矿器件的方法的潜力。
