Publication date: 17th February 2025
Achieving long term operational stability of perovskite cells under real-world conditions continues to be a major concern. Many mechanisms have been shown to cause degradation, recent examples being exposure to both water and oxygen [1], screening of the internal field driving charge extraction through ion migration [2] and interfacial recombination at the SnOx/bathocuproine interface in the hole blocking layer [3].
Here, we show how degradation mechanisms in a solar cell can be identified from experimental measurements by creating a digital twin, a virtual representation of an object designed to produce an accurate reflection of a physical object [https://www.ibm.com/think/topics/what-is-a-digital-twin]. Through simulations performed in real time, our digital twin can analyse performance changes due to degradation under operation and suggests potential mitigations. Our digital twin is a combination of the device transport model IonMonger [4] and machine learning [5]. It can be used to test hypotheses about the physical processes responsible for degradation. These processes include the role of mobile iodide vacancies in influencing charge transport across the interface through charge accumulation/depletion at interfaces, trap assisted recombination at the interfaces, and contributions of other impurities. The TOC Figure shows example results from our digital twin along with perovskite solar cells fabricated in the Cameron lab https://people.bath.ac.uk/chppjc/research.html.
TOC Figure Left: Perovskite solar cells fabricated in the Cameron lab. Right: Illustrative example joint distributions of two IonMonger input parameters for a degrading device as derived by Bayesian Parameter Estimation.
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.