Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.456
Publication date: 16th December 2024
As the power-conversion efficiency of organic solar cells exceeds 20%, it becomes a priority to reproduce such performance in systems made from upscaleable materials and processes, and in systems with high operational stability. Small changes in chemical structure, solvent, fabrication process and device scale can all result in disappointing solar cell performance relative to a high-efficiency reference. Methods are needed to interpret changes in device performance in terms of the structural and spectroscopic properties of the active layers, in order to gain insight into how processing affects the basic operational mechanisms of the devices. At the same time, processing approaches that maintain the long term stability of the devices are needed.
In this talk we will present an approach to interpret the luminescence from active layer materials and devices in terms of basic molecular parameters and then analyse the effects of variations in material processing on these parameters in order to rationalise comparative device performance. Temperature dependent luminescence is analysed in terms of the Marcus-Levich-Jortner framework using Bayesian inference to distinguish the influences of different molecular parameters. We show the impact of process parameters such as solvent, additive and blend ratio on model parameters; and also explore the dependence of the quality of the fit on the range of data used in fitting. In a second study we show how the thermodynamic stability of organic heterojunctions can be controlled using novel ternary systems.
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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.
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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.
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