Publication date: 16th July 2025
The halide perovskite solar cell absorbers require an appropriate band gap, high light absorption, high charge carrier mobility, long charge carrier lifetime and a work function that matches available selective transport layers. In this presentation we will discuss the different contributions of the constituents of the respective crystal to the dielectric constant of the absorber material. The dielectric response strongly affects the charge carrier lifetime and the screening of defect states. We will consider a number of materials and our understanding of the effects six years ago and now. Cases of 3D, 2D, 1D and 0D octahedra connectivities will be compared. New molecular cations will be incorporated. The apparent conflict between the terminology of dielectric and ferroelectric effects will be consolidated. The influence of unpaired electrons in heavy ions and the dynamics of the molecular cations will be compared. Structural phase transitions associated with ordering processes will be discussed.
The authors acknowledge funding through the Deutsche Forschungsgemeinschaft via the project 424708448. Discussions with Astita Dubey, Marianela Escobar Castillo, Vladimir Shvartsman, Hassan Esmaili, Boris Slautin, Sobhan Fathabad, Bernd Marler, and Andrei Salak are greatly acknowledged. W.A. acknowledges funding through the Office of Educational Affairs of the Government of Thailand.
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.