Opportunities of wide band gap semi-transparent perovskite solar cells and modules in BIPV
Fabio Matteocci a, Jessica Barichello a, Diego Di Girolamo a, Elisa Nonni a, Aldo Di Carlo a b
a CHOSE (Centre for Hybrid and Organic Solar Energy), Department of Electronic Engineering, University of Rome “Tor Vergata”, via del Politecnico 1, 00133 Rome, Italy
b CNR-ISM – Institute for Structure of the Matter, National Research Council, Rome, 00133, Italy.
International Conference on Hybrid and Organic Photovoltaics
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV22)
València, Spain, 2022 May 19th - 25th
Organizers: Pablo Docampo, Eva Unger and Elizabeth Gibson
Oral, Fabio Matteocci, presentation 169
DOI: https://doi.org/10.29363/nanoge.hopv.2022.169
Publication date: 20th April 2022

Building Integrated Photovoltaics (BIPV) envisages the replacement of traditional architectural elements with materials incorporating solar modules and represents one of the current most attractive research topic in the field of PV technologies. In this context, perovskite solar cells (PSCs) have attracted huge attention owing to their large absorption coefficient as well as color tunability.

Here, we report on a class of mixed halide perovskite named MAPb(Br1-xClx)3 which have been only marginally investigated in the literature for the development of transparent solar cells. Specifically, we combine electro-optical modeling and experimental results to design transparent PV (TPV) devices (cells and modules) maximizing at the same time key parameters such as Power Conversion Efficiency (PCE), Average Visible Transmittance (AVT) and Light Utilization Efficiency (LUE). The simulated results have been confirmed by fabricating devices showing state-of-art performances. Importantly, we obtained values up to 70% in terms of AVT and 4.3 % of LUE - among the highest reported so far. Moreover, light and thermal stability tests were performed on the most promising mixed compositions (0, 0.04 and 0.13 xCl), obtaining good results. Finally, we demonstrated the up-scaling process with the fabrication of mini-modules. Crucial aspects were evaluated such like the uniformity of the deposition of the entire device stack on larger substrate (5.7x5.7cm2 and 10x10cm2) and the P1-P2-P3 laser ablations. Only for 48.8 cm2-sized modules we observe a slight drop in terms of PCE if compared to the cells.

We believe that this oral presentation would be of great interest for a broad audience.

Authors acknowledge “IMPRESSIVE” project that received funding from the European Union’s Horizon2020 research and innovation program under grant agreement number N° 826013. Authors acknowledge “CITYSOLAR” project that received funding from the European Union’s Horizon2020 research and innovation program under grant agreement number N° 101007084.

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