Proceedings of Online Meetup - Beyond Lead Halide Perovskites: Syntheses and Applications of Metal Halide Semiconductors (MABP)
Publication date: 23rd April 2020
In the last decade, the research on lead halides perovskite (LHP) APbX3 (A = CH3NH3+, Cs+; X = Cl-, Br-, I-) has revolutionized solar energy conversion [1]. LHPs possess excellent optoelectronic properties which are suitable for photovoltaic (PV) applications, photodetectors and light emitting diodes [2]. The LHP crystal structure is constituted by a cubic lattice formed by corner-sharing [PbX6] octahedra forming a 3D network with A+ cations filling the cavities in between. Unfortunately, these materials suffer from two major drawbacks: the high toxicity of Pb and the degradation induced by heating, moisture and operation conditions.
One of the most promising strategy to overcome LHP issues is the substitution of lead by a combination of a monovalent (B+) and a trivalent (B3+) metal cations, retaining the perovskite structure. The resulting compounds, called double perovskites (DPs) or elpasolites, maintain a 3D network of alternating [B+X6] and [B3+X6] corner-sharing octahedra with an overall A2B+B3+X6 stoichiometry (X = Cl-, Br-, I-). Stable Cs2AgBiX6 DPs have been prepared both as bulk and as nanocrystals (NCs) and also as thin films for the fabrication of solar cells. Moreover, a considerable high photoluminescence quantum yield (PLQY) was recently reported in Bi-doped Cs2(Ag,Na)InCl6 compound [3].
Here, we present the recent results achieved in the preparation of colloidal double perovskite NCs following a modified hot-injection method where metal carboxylates are employed together with benzoyl halides (the latter used as halide precursors) [4]. The interesting optical properties of such materials make them promising materials for optoelectronic applications, such as LED and solar concentrators.
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.