Publication date: 17th February 2025
One of the key properties of hybrid perovskites is ambipolar transport, the ability to transport equal electric currents with both electrons and holes. Such feature is commonly attributed to pure, intrinsic semiconductors and ultimately descends from their proverbial defect tolerance, that makes their optoelectronic properties minimally affected by defects in their crystal structure or composition. A current significant challenge is to get reliable n-type or p-type doping in hybrid perovskites, which would be crucial to unlock improvements in devices requiring unipolar transport, such as field effect transistors or light emitting devices, as well as to limit charge recombination at interfaces in perovskite solar cells, in order to enhance their power conversion efficiency. Here we show experimental study of wide-bandgap perovskite solar cells with the inclusion of a controlled amount of two-dimensional transition metal carbides (MXenes Ti3C2Cl) for interface engineering [1]. The photocarrier dynamics in the active area of the full device was explored with ultrafast optical spectroscopy by combining time resolved photoluminescence and differential transient transmission, in a configuration analogous to that as reference [2]. Our technique disentangles photoexcited electron and hole dynamics, providing direct access to their separate trapping rates, their concentrations and their bimolecular recombination rates.
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.