Proceedings of 13th Conference on Hybrid and Organic Photovoltaics (HOPV21)
Publication date: 11th May 2021
Owing to efficiency of perovskite solar cells is rapidly reaching the one of conventional PV, stability and scalability are becoming important topics toward commercialization of this ultra-low-cost photovoltaic system[1–3]. In this work, we develop a new molecular and structural engineering approaches for 3D/2D perovskite absorber as well as polymeric hole transport layer that allow us to successfully fabricated high efficiency, stable perovskite solar cells and modules reaching above 21% photoconversion efficiency (PCE) on small area cells as well as 19.9% PCE on 9.0 cm2 active area and above 18% on 48 cm2 active area of perovskite solar modules. Stable perovskite modules have been fabricated by an improved up-scaling program showing that our strategy is quite scalable and reproducible and compatible with low-cost solution-based manufacture strategies. Light stability (under atmospheric air and 55% RH) of PSC has been carefully investigated via ex-situ GIWAX analysis for ≈1000 hours and the results shown that applying novel 2D materials and using polaron arrangement and doping strategy of PTAA it is possible to improve the efficiency as well as the stability of the PSCs and Modules[4,5]. The obtained performances of the fabricated modules can be classified among the best-reported values for this area. The interpretation of optical, electrochemical and photovoltaic characteristics of the devices has been assessed by thorough analyses including UV-Vis absorbance, Photoluminscence (PL), Electrochemical Impedance Spectroscopy (EIS), Cyclic Voltammetry (CV), Transient Photovoltage and Photocurrent Fall/Rise analyses in addition to surficial analysis methods e.g., FE-SEM and XRD measurements.
‡NYN and MZ contributed equally to this work.
We gratefully acknowledge the financial support from Italian Ministry of Economic Development in the framework of the Operating Agreement with ENEA for Research on the Electric System, support from European Union’s Horizon 2020 research and innovation program GRAPHENE Flagship Core 3 grant agreement No.: 881603.
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