Proceedings of nanoGe Fall Meeting19 (NFM19)
DOI: https://doi.org/10.29363/nanoge.nfm.2019.112
Publication date: 18th July 2019
The organic solar cell (OSC) field has been revolutionized by the development and use of novel non-fullerene small molecular acceptors with efficiencies now reaching >16% in several systems. Many reports of OSC blends focus primarily on the device performance aspect of the solar cell and the device stability and mechanical durability of non-fullerene OSCs have received less attention. Developing devices with both high performance and long-term stability remains a challenge, particularly if the material choice is restricted by roll-to-roll and benign solvent processing requirements and by desirable ductility requirements. Yet, morphological and mechanical stability is a prerequisite for OSC commercialization. We will discuss the current understanding of the phase behavior of OSC mixtures and the relation of phase behavior to performance, processing needs (e.g., kinetic quench), and morphological stability via meta-stability or vitrification. A large range of miscibility (from hyper-miscibility to strong hypo-miscibility) is observed in a number of systems, including a temperature dependence that can be a complex mixture of upper- and lower critical solution temperature behavior for both the binodal and the liquidus. The measurements and concepts presented should help to create molecular structure-function relationships that would allow some predictive guidance on how desired phase behavior and vitrification properties can be targeted by specific chemical design, and how simple measurements such as differential calorimetry can be used to screen properties that impact stability.
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.