Publication date: 1st July 2014
Solar cells based on alkyl ammonium halogen plumbate perovskites have recently garnered a large amount of interest in the photovoltaics community. Previously reported record-breaking devices incorporate a solution processed planar heterojunction with the MAPbI3 sandwiched between n and p-type charge collection layers. Here, the focus will be on the fabrication protocols developed for the deposition of planar heterojunction solar cells via a solution deposition-conversion technique on TiO2 coated FTO substrates and with state-of-the-art Spiro-OMeTAD as the hole transporter. Our results show that the processing conditions of the conversion solution have a deep influence on the resulting perovskite structures, from extended charge diffusion lengths to other morphological effects. We have studied the prepared structures not only via structural analysis, but also through time-resolved photoluminescence measurements. In this way we have pinpointed the origin of the limits to power conversion efficiency, mainly short diffusion lengths of the photoexcited species. By tuning the deposition conditions, we have obtained solar cells exhibiting power conversion efficiencies of up to 15% for the typical MAPbI3 perovskite and approaching 7% for wide bandgap perovskite absorbers.
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.