Castriotta Luigi Angelo, Matteocci Fabio, Vesce Luigi, Cinà Lucio, Agresti Antonio, Pescetelli Sara, Ronconi Alessandro, Löffler Markus, Stylianakis Minas M, Di Giacomo Francesco, Mariani Paolo, Stefanelli Maurizio, Speller Emily Mae, Alfano Antonio, Paci Barbara, Generosi Amanda, Di Fonzo Fabio, Petrozza Annamaria, Rellinghaus Bernd, Kymakis Emmanuel, Di Carlo Aldo
CHOSE - Centre for Hybrid and Organic Solar Energy Department of Electronic Engineering University of Rome Tor Vergata, Roma 00133, Italy.
Cicci Research srl, Via Giordania 227, Grosseto 58100, Italy.
ACS Appl Mater Interfaces. 2021 Mar 17;13(10):11741-11754. doi: 10.1021/acsami.0c18920. Epub 2021 Mar 2.
The use of solution processes to fabricate perovskite solar cells (PSCs) represents a winning strategy to reduce capital expenditure, increase the throughput, and allow for process flexibility needed to adapt PVs to new applications. However, the typical fabrication process for PSC development to date is performed in an inert atmosphere (nitrogen), usually in a glovebox, hampering the industrial scale-up. In this work, we demonstrate, for the first time, the use of double-cation perovskite (forsaking the unstable methylammonium (MA) cation) processed in ambient air by employing potassium-doped graphene oxide (GO-K) as an interlayer, between the mesoporous TiO and the perovskite layer and using infrared annealing (IRA). We upscaled the device active area from 0.09 to 16 cm by blade coating the perovskite layer, exhibiting power conversion efficiencies (PCEs) of 18.3 and 16.10% for 0.1 and 16 cm active area devices, respectively. We demonstrated how the efficiency and stability of MA-free-based perovskite deposition in air have been improved by employing GO-K and IRA.
使用溶液法制备钙钛矿太阳能电池（PSC）是一种成功的策略，可降低资本支出、提高产量，并实现光伏适应新应用所需的工艺灵活性。然而，迄今为止，用于PSC开发的典型制造工艺是在惰性气氛（氮气）中进行的，通常在手套箱中，这阻碍了工业规模扩大。在这项工作中，我们首次展示了通过使用掺杂钾的氧化石墨烯（GO-K）作为介孔TiO和钙钛矿层之间的中间层，并采用红外退火（IRA），在环境空气中处理双阳离子钙钛矿（摒弃不稳定的甲铵（MA）阳离子）。我们通过刮涂钙钛矿层将器件有源面积从0.09扩大到16平方厘米，0.1平方厘米和16平方厘米有源面积器件的功率转换效率（PCE）分别为18.3%和16.10%。我们展示了通过使用GO-K和IRA如何提高空气中无MA基钙钛矿沉积的效率和稳定性。
