Proceedings of nanoGe Fall Meeting19 (NFM19)
DOI: https://doi.org/10.29363/nanoge.nfm.2019.213
Publication date: 18th July 2019
A decade ago, lead halide perovskites emerged in optoelectronic research as a novel class of solution-processed, low-cost semiconductors with intriguing charge-transport properties. Since then, enormous interest has been directed towards these materials. Aside from the mainstream research focused on perovskite PVs, these materials also promise to benefit other adjacent optoelectronic fields such as photodetectors, light emitting diodes, and lasers. These benefits are not only due to the low cost and easy processability associated with perovskites, but also with the notable charge-transport, defect-tolerance, efficient excitonic dynamics, and band gap tunability that 3D perovskites exhibit. Unlike in PV applications where the heavy metal content of lead halide perovskites is considered a drawback, X-ray detectors instead turn this drawback into an advantage due to their high absorptivity. Additionally, the high carrier mobility, low cost and easy scalability make the lead halide perovskites almost ideal materials for the large scale production of flat panel X-ray radiation detectors that are in high demand in medicine, high-precision control in advanced manufacturing, and security [1].
The numerous advantages of lead halide perovskites were also realized in gamma detectors [2]. While gamma detectors offered several additional challenges in comparison to X-ray detectors, such as achieving extremely low detector noise and high charge collection efficiency, these were surmounted by selecting the proper cation composition in lead halide perovskite single crystals [3].
In contrast to direct conversion by bulk 3D perovskites, 3D perovskite nanocrystals were recently proposed as promising scintillators given their high photoluminescence quantum yield (PLQY), although issues pertaining to the self-absorption of emitted light are expected. The self-absorption is indeed suppressed by low-dimensional (LD) perovskites that are structurally derived from their 3D counterparts with disconnected metal halide octahedra. Given that they still exhibit high X-ray absorption, and that LD perovskites exhibit self-trapped exciton (STE) emission with large Stokes shifts and high PLQY, it was recently demonstrated that LD perovskites act as efficient X-ray scintillators [4].
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.