Proceedings of International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics (NIPHO20)
DOI: https://doi.org/10.29363/nanoge.nipho.2020.003
Publication date: 25th November 2019
An extensive use of renewable and clean energies is required to reduce the strong dependence on fossil fuels and its effect in the climate change. At the same time, new and more advanced systems have to be developed in order to allow a real energy savings. Solar energy, the most abundant renewable energy source, becomes a key actor. Through the photovoltaic effect, this energy can be converted directly into electrical power easy to transport or ready to be consumed in place. In this context, Halide Perovskite (HP) have been emerged as extremely appealing materials with record photoconversion efficiencies higher than 25%. In addition, the goodness of these materials to produce high efficiency solar cells makes them also suitable for the preparation of efficient LED, a key technology to increase energy savings as illumination is the responsible of the 20% of the total electric power consumption. Despite this impressive achievements, ABX3halide materials suffer for some constrains as not always can crystallize with perovskite structure, where B cation is 6-fold coordinated to X anions (a corner sharing [BX6] octahedra) and the A cation occupying the 12-fold cuboctahedral coordination site. In some cases, depending on the Goldschmid tolerance factor and the octahedral factor (determined by A, B and X radii), the octahedra cannot share the corners. This fact influences dramatically the material properties, increasing significantly the bandgap and affecting deleteriously the transport properties. Thus, the interest of the materials with this non-perovskite phase decreases for the fabrication of optoelectronic devices. In this presentation we analyze different ways in which the constrains limiting the phase stability can be surpassed.
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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.