Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV24)
Publication date: 6th February 2024
Lead halide perovskite solar cells have shown promising efficiencies; however, their large-scale implementation has been hindered by their instability towards environmental impacts such as moisture or light, next to other challenges such as large-scale fabrication. To further develop lead halide perovskite solar cells, in depth understanding of the intrinsic properties of these absorber materials is necessary. This includes a need to understand the intrinsic electron and ion dynamics under light. So far, most studies on behavior under light exposure focused on perovskite thin films, and largely on the degradation under light. However, slight differences in the preparation of the thin films lead to different grain sizes, which affects the thin film’s properties. Studying single crystals instead of thin films excludes these variations and allows to study the intrinsic properties of different compositions.1 Furthermore, especially the surface and interfaces of the material interact with the environment and possible other device layers. Using photoelectron spectroscopy (PES), the electronic structure and chemical composition of surfaces can be investigated.
Here I will present the laser light-induced electron and ion dynamics of different, clean lead halide perovskite single crystal surfaces, while avoiding X-ray induced changes in the samples. Furthermore, to ensure comparability within the solar cell community, the laser power was set to the equivalent of 1 sun. By using PES for characterizing these crystal surfaces, we were able to follow both compositional and electronic changes and we found distinct behaviors for the different crystal compositions, which give insight into how ion and electron movement are impacted by the perovskite composition.
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.