DOI: https://doi.org/10.29363/nanoge.DEPERO.2023.035
Publication date: 14th September 2023
In this talk, I will give you an overview on the organic and halide perovskites semiconductors based activities taking place in our research group. These semiconductors have emerged as potential photonics materials for future commercial optoelectronic devices, however, face a major challenge of ambient stability. Organic LEDs have become a matured technology by now for small display industries with budget crossing 10s B$. I will discuss the device engineering results on single junction and multi-junction OLEDs.
In halide perovskites; we have results of single junction cell PCE ~ 21% and silicon/perovskite tandem cell PCE > 27%. We also made LEDs with decent luminance efficiency ~ 45 cd/A. In halide perovskites, the two-dimensional (2D) and quasi-2D halide perovskites have shown promising stability against ambient stability. Hence, the understanding of the photo-physics of 2D perovskites can be a tool to get an in-depth insight into these novel halide perovskites. In this talk, we will discuss the origin of broadband illumination and other emission peaks using temperature-dependent time-resolved photoluminescence (PL) spectra of 2D layered halide perovskites (i.e., (PEA)2PbBr4 and (PEA)2PbI4) semiconductors. We will show that broad emission in (PEA)2PbBr4 perovskite is observed due to coupling of electronic states in inorganic well part (PbBr64-) and organic barrier part (PEA), which is in contrast to a proposed model based on self-trapped-exciton.
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.