Proceedings of nanoGe September Meeting 2017 (NFM17)
Publication date: 20th June 2016
Organic lead halide perovskites have emerged as an outstanding class of materials for optoelectronic applications, with numerous examples in the fields of photovoltaics and light-emitting diodes. Nevertheless, the toxicity of lead is an issue of major concern that needs to be addressed for the commercialisation of this novel technology. The use of tin as a replacement for lead has been studied with promising results, although tin-based perovskites are significantly more sensitive to ambient conditions and exhibit unwanted metallic conductivity due to a self-doping issue.
Reduced-dimensionality perovskites have been recently introduced as a way of increasing material and device stability in lead-based materials. However, this approach has not been explored for device applications in hybrid tin halide perovskites. Interestingly, the metal-like behaviour of 3D systems (e.g. CH3NH3SnI3) can be suppressed by replacing methylammonium by larger organic cations (phenylethlyammonium, butylammonium) to induce the formation of 2D structures that present semiconducting properties1. This talk will cover the latest advances of our group in the field of low-dimensional hybrid tin halide perovskites. Specifically, the tunable optical properties of our materials, their photoluminescence characteristics and their capability to act as TiO2 sensitizers will be discussed. Finally, the incorporation of 2D tin-based perovskites into proof-of-principle light-emitting devices will be shown.
1 D. B. Mitzi, C. a. Feild, W. T. a. Harrison and a. M. Guloy, Nature, 1994, 369, 467–469.
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.