DOI: https://doi.org/10.29363/nanoge.inform.2019.046
Publication date: 8th January 2019
Despite the outstanding optoelectronic properties of lead halide perovskites and the impressive performances achieved in perovskite-based devices, several concerns still hinder the widespread application of these materials. Two of the main bottlenecks today are: (i) the toxicity of Pb2+ cations, and (ii) the instability of hybrid organic-inorganic perovskites coupled with the difficulty in synthesizing fully-inorganic ones due to poor solubility of cesium halide salts in common solvents.
Here, we have used a fully-dry mechanical approach via ball-milling of different precursors to synthesize a wide range of phase-pure halide perovskites and related compounds with suitable optoelectronic properties for different applications from photovoltaics to light-emission. In particular, we have synthesized fully-inorganic CsPbX3 (X = I, Br, and Cl) compounds and investigated the structural, chemical, and optical effects of adding potassium halides (KX). We have also synthesized lead-free hybrid and inorganic perovskites based on Sn2+ as well as other related compounds such as A2Sn(IV)X6 “vacancy-ordered perovskites” and A3Bi2X9 (A = Cs, formamidinium, and methylammonium).
Eventually, we have demonstrated that the so-formed high quality dry powders can be used to make thin films via single-source vacuum deposition, thus enabling their use in different devices such as solar cells or light-emitting diodes.
The research leading to these results has received funding from the European Union Programme for Research and Innovation Horizon 2020 (2014-2020) under the Marie Skłodowska-Curie Grant Agreement PerovSAMs No. 747599, and project INFORM (grant 675867), the Spanish Ministry of Economy and Competitiveness (MINECO) via the Unidad de Excelencia María de Maeztu MDM-2015-0538, MAT2017-88821-R and PCIN-2015-255, and the Generalitat Valenciana (Prometeo/2016/135 and GRISOLIAP/2017/089). H. J. B. acknowledges the support of ERA NET PCIN-2017-014. M. S. thanks the MINECO for his post-doctoral RyC contract.
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.