Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.338
Publication date: 16th December 2024
Nanostructured semiconductors dominate opto-electronics to date, mainly in the framework of quantum wells and dots grown by vacuum epitaxial methods. A next (r)evolution in this field is happening as we speak through the use of solution processable nanostructured materials. Indeed, by combining low temperature, substrate independent processing with size-tunable optical properties, such as luminescence and optical amplification (gain), these ‘nanocrystals’ are excellent building blocks to realize small footprint LEDs and lasers. In this talk, I will overview our efforts towards integrated laser sources based on colloidal nanocrystals. To do so, I will start out with discussing how optical gain, a premise to build lasers, is measured and quantified in these materials. Building on this framework, I will explain how net stimulated emission develops in and how we reached after nearly a decade of research a set of materials with excellent gain metrics on all fronts using so-called ‘bulk nanocrystals’ as a new design route. Next, I will show a few results of combining these flexible materials with integrated photonic cavities, thereby realizing ultra-small footprint lasers operating under quasi-CW pumping. Finally, I will present a route forward to transition these RGB lasers into the infrared spectrum where a select pick of ultrafast mid-infrared spectroscopy experiments gives a first flavor of the challenges , but also massive opportunities, lying ahead in the ongoing ERC project ‘NOMISS’.
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.