Publication date: 15th December 2025
The photoreduction of CO2 using perovskite materials has gained increasing attention due to the need for efficient solar-driven carbon conversion. Halide perovskites offer strong visible-light absorption, high carrier mobility, and tunable band structures, but their limited stability and lead toxicity raise significant challenges. Lead-free double perovskites provide a more sustainable alternative, combining environmental compatibility, structural robustness, and bandgap tunability, although they typically exhibit wider band gaps and lower carrier transport efficiencies. To mitigate these limitations, we have developed hybrid catalysts based on the lead-free Cs2AgBiBr6 double perovskite coated with a semiconducting organic polymer. The polymer enhances charge-transport dynamics and significantly influences photocatalytic selectivity, shifting CO production at lower polymer concentrations toward CH4 generation at higher loadings while maintaining structural stability. We have performed spectroscopic and electrochemical analyses to understand the relationship between charge transfer and product selectivity. Overall, this hybrid strategy offers a promising route to optimize sustainable lead-free perovskite-based photocatalysts for CO2 reduction.
This work was supported by the Spanish Government (Ministerio de Ciencia e Innovación PID2022-139866NB-I00) and the grant 2023 CLIMA 00067 funded by Departament de Recerca i Universitats, del Departament d'Acció Climàtica, Alimentació i Agenda Rural i del Fons Climàtic de la Generalitat de Catalunya.
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.