Proceedings of 13th Conference on Hybrid and Organic Photovoltaics (HOPV21)
Publication date: 11th May 2021
Lead halide perovskites have drastically changed the solar cell research field due to their ease of synthesis and high power conversion efficiencies, which now reach over 25%. Improving stability and understanding degradation pathways in these devices is of high importance for their further development and potential commercialisation. X-ray based techniques such as photoelectron spectroscopy (PES) are powerful tools for obtaining chemical and electronic structure information of material surfaces and therefore interfaces of perovskites with contact materials can be studied. By combining measurements with visible illumination and/or dosing of atmospheric gasses, photo-induced reactions and therefore the stability of materials can be studied in-situ. However, the X-rays themselves used for measurement can also cause changes in the perovskite materials.
In this presentation, I will show how we have used photoelectron spectroscopy to investigate the X-ray stability of different perovskite active materials. We were able to follow the kinetics chemical and electronic structure changes in our materials induced by the X-ray illumination. Different degradation pathways and kinetics are found depending on the perovskite composition, some of which might be similar to degradation pathways under visible illumination [1,2]. Furthermore, I will show results of studies of the interface formation and interface degradation of a perovskite active layer with metals such as silver [3] and copper. Reactions with these metals can lead to a degradation of the perovskite materials.
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.
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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.