Development and Fabrication of High Efficiency and Stability of Semitransparent Perovskite Solar Cells for 4-Terminal Perovskite/Silicon Tandem Solar Cells

Semitransparent perovskite solar cells (PSCs) have emerged as a cutting-edge technology, bridging the gap between energy harvesting and architectural integration. Recent advancements have elevated the certified power conversion efficiency (PCE) of semitransparent PSCs to 21.68% [1]. However, for the inverted architecture, the highest recorded efficiency up to our knowledge has not crossed the limit of 18%. The crucial benefit of using inverted perovskite architecture is that it has shown superior environmental and thermal stability which is a key factor in the future application [2]. However, to use the full potential of the semitransparent solar cells, the multi-junction (tandem) could be fabricated from different band gap semiconductors.<br/>The current research work, development, and fabrication of the semitransparent PSCs with three compositions of commercially available SnO₂ nanoparticle materials working as a buffer layer. PSCs has been also modified by changing the top metal electrode with the transparent conductive oxide (TCO) contact in order to improve the average visible transmittance (AVT) in PSCs in order to utilize part of light by c-Si solar cells. We achieve this by using three different material compositions, indium zinc oxide (In₂O₃: Zn, IZO), tungsten-doped indium oxide (In₂O₃: W, IWO) and tin-doped indium oxide (In₂O₃:Sn, ITO) as a thin film with a thickness in the range from 100 nm to 300 nm. In the following work we present the results of 4T perovskite/silicon devices improvement of efficiency and stability in order to pass the reliability tests including light soaking (ISOS-L) (&gt;1,000 h), damp-heat (ISOS-D) (65°C /65 RH%, &gt; 1,000 h) and outdoor stability (ISOS-O) (&gt;4000 h).<br/><b>Bibliography</b><br/>[1] Adv. Energy Mater. 13 (2023) 2302147<br/>[2] Adv. Mater. 28 (2016) 3937-3943<br/><b>Acknowledgement:</b><br/>Financial support of these studies from Gdansk University of Technology by the (DEC/17/1/2023/IDUB/13b/Ag) grant number under the ARGENTUM Triggering Research Grants– ‘Excellence Initiative – Research University’ program is gratefully acknowledged. And this research was financial support from Gdansk University of Technology by the (DEC/46/2023/IDUB/I.1) grant number under the NOBELIUM JOINING GDANSK TECH RESEARCH COMMUNITY ‘Excellence Initiative – Research University’ program is gratefully acknowledged. This research was also funded in part by National Science Centre, in cooperation with the M-ERA.NET 3 Call 2021 for the grant no. 2021/03/Y/ST5/00233. This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 958174.