Proceedings of MATSUS Fall 2023 Conference (MATSUSFall23)
DOI: https://doi.org/10.29363/nanoge.matsus.2023.195
Publication date: 18th July 2023
Development of efficient photoelectrochemical (PEC) systems for solar fuel production requires a detailed understanding of loss mechanisms that limit performance under device operation. This often proves a challenge as many PEC devices are reliant on semiconductor materials whose optoelectronic and catalytic properties are poorly understood. Spatial collection efficiency (SCE) analysis has recently been introduced as a non-destructive analytical technique to probe the spatial distribution of charge carrier collection with nanometer resolution in photoelectrodes under operating conditions, requiring only external quantum efficiency measurements and knowledge of the device optical parameters. I will demonstrate how the technique can be used to gain insight into the optoelectronic properties of emergent photoelectrode materials including quantification of i) charge carrier transport lengths and ii) excitation-wavelength dependent charge carrier localization losses, the latter of which we have found to ultimately limit the performance of several open d-shell metal-oxide photoelectrode candidates. Additionally, current techniques used to extract SCE profiles are suitable for PEC devices containing only a single active layer deposited on a current collector, which are generally not representative of practical devices. To this end, I will discuss our efforts at implementing a new numerical approach to SCE analysis which allows for characterization of losses in multilayer photoelectrodes containing selective transport layers, thereby providing a tool for quantitative characterization of losses in practical photoelectrode devices under operating conditions.
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.