Proceedings of nanoGe September Meeting 2017 (NFM17)
Publication date: 20th June 2016
In my talk, I will focus primarily on the charge transfer and recombination processes which are key determinants of the efficiency of methylammonium lead halide perovskite solar cells. Experimentally our studies of charge transfer are based on transient absorption and photoluminescence measurements on timescales from femtoseconds to steady state. I will focus in particular upon the kinetics and efficiency of charge transfer from the photoactive perovskite layer to organic electron and hole collection layers in planar structure films and devices. Topics to be addressed will include the competition between charge transfer and charge trapping / recombination as a function of charge carrier density, material selection and processing and film aging, and the correlations between these processes and device photocurrent generation. The optical studies will be complimented by transient photocurrent and photovoltage studies of charge recombination as a function of photoactive layer and charge collection layer composition, and correlated with measurements of device voltage.
The second part of my talk will address the stability of the same devices, addressing in particular the photoinduced degradation of perovskite devices under oxygen exposure, and how the selection appropriate material choice and film processing can enhance performance.
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.