Publication date: 17th February 2025
Perovskite solar cells (PSCs) have emerged as a promising alternative to traditional silicon-based solar cells, but significant challenges persist in developing perovskite inks and scalable fabrication processes suitable for large-scale production. This study presents a novel approach to address these challenges by formulating colloidal inks that utilize toluene (TL) and chlorobenzene (CB) as co-antisolvents, enabling efficient PSC fabrication through a slot-die (SD) coating process. The engineered colloidal inks exhibit improved rheological properties, which enhance wettability and facilitate the formation of high-quality perovskite films. The presence of large colloidal structures, including α-cubic perovskite, δ-hexagonal perovskite, and intermediate transition phases, promotes heterogeneous nucleation while lowering the activation energy required for crystallization. This leads to superior crystal growth and improved film morphology. Additionally, the use of co-antisolvents strengthens the binding energy between formamidinium (FA) and PbI3 while weakening the coordination of dimethyl sulfoxide (DMSO), creating a thermodynamically favorable environment for perovskite crystallization. This colloidal strategy achieves devices with a maximum power conversion efficiency (PCE) of 21.32% and outstanding long-term stability, maintaining 77% of the initial efficiency over 10,115 hours. Furthermore, the scalability of this method is demonstrated through the fabrication of lab-scale minimodules with an efficiency of 20.26% and larger-area minimodules with 19.15% efficiency. These results provide critical insights into the interplay between ink composition, rheological behavior, film quality, crystallization kinetics, and overall device performance. This work highlights a scalable and efficient pathway for advancing the commercial viability of PSCs.
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (NRF-2021R1A2C2010353, RS-2023-00207836, and RS-2023-00246239) and the Korea Electric Power Corporation (CX72220014).
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.