Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)
Publication date: 21st February 2018
Perovskite solar cell (PSC) research has been attracting increasing attention in recent years. Since the initial report on solid state solar cells with efficiency of 9.7% in 2012. There has been increased number of publications in this area as well as fast increase of certified efficiencies which now exceed 22%. High efficiency of PSCs is evidently taking benefit from promising properties of perovskite absorbers such as high absorption over the visible range and long diffusion length. However electron selective contact plays an important role in the electron extraction efficiency which influences significantly to the performance of PSCs.
TiO2 is likely the most widely used electron selective contact in PSCs because of its chemical stability, easy preparation, matched energy levels with those of perovskite and its high transmittance in the visible range. However TiO2 based planar methylammonium lead iodine (MAPbI3) PSCs show relatively low long-term stability. Here we provided ZnO compact layers prepared by spray pyrolysis as ESC for PSCs. Our ZnO based planar MAPbI3 devices were not only stable in a humidity of 35% but also improved the performance even after more than 1 month of preparation, due to an increase of charge transfer at the ZnO interface as it has been characterized by Impedance Spectroscopy. The formation of ZnO depending on the preparation conditions such as gas flow, zinc acetate solution concentrations and substrate temperatures effects on the performance of stability of MAPbI3 solar cells were discussed in this study. We have also observed that long term structural evolution of perovskite film also depends on the ZnO substrate and its deposition method.
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.