Proceedings of Materials for Sustainable Development Conference (MAT-SUS) (NFM22)
Publication date: 11th July 2022
Metal halide perovskites (MHPs) have attracted tremendous interest in the fields of solar cells and light-emitting devices thanks to prominent intrinsic properties like defect robustness and good synthesizability. Despite various advantages of MHPs, toxicity is a major concern for their commercialization because archetypical MHPs contain Lead (Pb). There have been tremendous efforts to find alternatives to Pb-based perovskites using computational and experimental methods. However, the certified efficiency of Pb-free candidates is still far behind that of Pb-analogs. Sn-based perovskites have shown the best performance among Pb-free candidates. However, the stability of Sn-based perovskites is worse than Pb-based solar cells. Various combination of A-site cation molecules has been tested to enhance the efficiency and the stability of Sn-based perovskite solar cells. Although Cesium has better potential than other molecular cations in terms of chemical and thermal stability, the performance of Cs-based solar cells is inferior to that of molecular cation-based photovoltaic cells. This study presents various engineering methods to enhance the stability and efficiency of Cs-based tin perovskites solar cells using theoretical methods. We have explored the role of SnX2 (X=F, Cl, Br) additives and alkali metal interstitials on the stability of CsSnI3 films and devices using density functional theory calculations. Our comparative study for various candidate compositions revealed that SnBr2 and K show the most promising behavior among considered additives and interstitials, respectively, regarding stability and efficiency. In addition, dual-site compositional engineering on A- and X- sites are investigated with ab initio thermodynamics. The best composition having optimum bandgap and phase stability is explored by comparing the formation energies of yellow and black phases.
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.