Publication date: 17th February 2025
Monolithic perovskite/silicon (Si) tandem solar cells have recently emerged as a highly promising technology for next-generation photovoltaics, offering the potential to exceed the Shockley-Queisser efficiency limit of single-junction solar cells. Currently, the record efficiency for this technology stands at 34.6%, showcasing significant progress in the field. Despite this achievement, the theoretical efficiency limit for perovskite/Si tandem solar cells is estimated to be 45%, indicating ample opportunity for further optimization and performance enhancement. In this study, we report on a systematic optimization of the front stack of monolithic perovskite/TOPCon-Si tandem solar cells with a planar front-side configuration. These optimizations resulted in low reflection losses of approximately 6.3% across the 350–1100 nm spectral range and a cumulative short-circuit current density (JSC) of 40.3 mA/cm² (sum of the top and bottom cells). The optimized device achieved a power conversion efficiency (PCE) of 29.5%.
We systematically optimized the front-side design of monolithic perovskite/Si tandem solar cells to minimize reflection losses and enhance current generation. Key strategies included: (1) the implementation of advanced anti-reflection coatings (ARC) to reduce parasitic reflection losses, (2) the refinement of sputtered transparent conductive electrodes to improve front electrode performance, and (3) the optimization of the thickness and width of front-side contact fingers to balance shading and conductivity. These improvements collectively contributed to an increased current generation of 1–2 mA/cm², demonstrating the potential for further performance enhancement in tandem solar cells.
nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.
Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.
International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.
The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.