Publication date: 15th December 2025
Oxygen stoichiometry in mixed ionic-electronic conductors (MIECs) can be used to control a wide range of materials functionalities, from electrical conductivity to optical and magnetic properties [1]. Moreover, by appropriately choosing MIEC materials with a wide electrochemical stability window, oxygen incorporation/release can be used for charge storage, in analogy with Li-ion battery electrodes. In the present contribution, I will show our recent results related to precise oxygen control in MIEC thin films using advanced electrochemical methods, and demonstrate how this strategy can be implemented for the precise tuning of materials functionalities and for the realization of new generation of oxygen-based devices including an all-solid-state oxygen-ion battery (OiB) [2]. These batteries can deliver continuous and reliable operation in intermediate and high temperature environments (>250 ºC), where state-of-the-art Li-based devices fall short, and they present high stability towards a variety of environmental conditions – including oxygen and humidity, while delivering competitive performance (OCV > 1V, electrode capacity > 60 mAh g-1). Advances in technology development, including electrolyte miniaturization, electrode engineering, and technology scale-up, which are being achieved within the European project “OxyBatt”, will be shown.
This project received funding by the European Union under HorizonEU research and innovation program OxyBatt (101158721)
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.