Proceedings of nanoGe September Meeting 2015 (NFM15)
Publication date: 8th June 2015
Hybrid organic/inorganic lead halide perovskite solar cells have already established themselves as an extremely promising PV technology despite only being investigated as such since 2009. Over the past few years, the sunlight-to-electricity conversion efficiency of these devices has improved dramatically from 3.8% to the current record of >20%, a rate unprecedented in the PV field. When this is considered in combination with the simple and inexpensive production process, it is easy to see why perovskites have generated a lot of excitement in the scientific community. While most devices mainly use I as the halogen, mixed halide perovskite precursors can be used to obtain CH3NH3PbI3-xClx. Results from these mixed halide perovskites has made it apparent that small changes in the composition and/or morphology of the crystalline perovskite layer can have dramatic effects on the overall performance of the PV device. The goal of this study was to develop a comprehensive, fundamental understanding of the crystallization process for triiodide perovskites as well as mixed halide perovskites. The formation of the crystalline layer was studied as a function of precursor composition and annealing conditions. Thermogravimetric analysis with differential scanning calorimetry (TGA-DSC), temperature-dependent X-ray diffraction (T-XRD), and temperature programmed decomposition mass spectrometry (TPD-MS) were all utilized to yield a more holistic picture. The new knowledge of this process will facilitate the future construction of highly efficient devices that can revolutionize the energy landscape. We have also explored the device functionality using scanning Kelvin probe microscopy to probe the operation mechanism as a function of film thickness. Furthermore, we will present stability data on the degradation of solar cells in a variety of aging conditions and thus provide insight into prolonging the lifetime as needed for commercialization of PV technology.
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.