Proceedings of September Meeting 2016 (NFM16)
Publication date: 14th June 2016
Organic/inorganic hybrid perovskite thin films are promising materials for photovoltaic applications that exhibit significant heterogeneity in local non-radiative recombination rates. In this talk, we will describe both confocal fluorescence lifetime imaging microscopy and scanning-probe microscopy studies that help elucidate the origins of this local heterogeneity in terms of composition and surface defects. We measure local photoluminescence, local electroluminescence, local conductivity via conductive atomic force microscopy, and local surface potential using scanning kelvin probe microscopy (SKPM) and show correlation between these properties and film processing methods. We further show how specific processing additives and illumination serve to alter the distribution of surfaces states, and demonstrate the “photo-cleaning” effects in perovskite are associated with photo-induced ion motion using time-of-flight mass spectrometry. By using different processing methods and additives, we tailor the materials properties, and we show that we are able to obtain carrier lifetimes and PL intensities in thin films approaching those in single crystals, opening the way for these materials to approach the Shockley-Queisser limit.
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.