Proceedings of 13th Conference on Hybrid and Organic Photovoltaics (HOPV21)
Publication date: 11th May 2021
The incorporation of additives to modulate the properties of metal halide perovskite thin films has become a successful approach to improve the power conversion efficiency of perovskite-based solar cells. Herein, the use of sodium diethyldithiocarbamate (NaDEDTC) as transient chelating ligand is demonstrated to increase the open-circuit voltage of methylammonium lead triiodide perovskite solar cells. DEDTC reduces the rate of perovskite crystallization. Absorption and emission spectra show that the optical band gap of the perovskite films remains essentially unchanged and X-ray diffraction reveals formation of preferentially oriented crystallites independent of the use of DEDTC. Nevertheless, the use of DEDTC results in a decrease of non-radiative decay as inferred from a two-order of magnitude increase in electroluminescence efficiency, explaining the increased open-circuit voltage. Fourier-transform infrared, nuclear magnetic resonance and X-ray photoelectron spectroscopies show that the DEDTC ligand is not present after the film processing. Therefore, DEDTC modulates film formation but is not incorporated in the perovskite or present as a surface ligand. Simultaneously, it is observed the incorporation of sodium ions in the perovskite layer.
Ministry of Science, Innovation and Universities (Project RTI2018-101092-B-I00). Fundación Séneca - Agencia de Ciencia y Tecnología de la Región de Murcia (Project 20959/PI/18 and M. M.-M. postdoctoral fellowship from “Saavedra Fajardo Program”). Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia (RED2018-102815-T).
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.