Complex Exciton Dynamics in Materials: a First-Principles Computational Approach
This project aims to develop a predictive theoretical approach to understand exciton dynamics in emerging materials, enhancing transport efficiency through structural modifications.
Projectdetails
Introduction
Understanding the energetics and dynamics of excited states formed by light-matter interactions is essential for applications across optoelectronics and photophysics. In systems of reduced dimensionality, strongly-bound excitons serve as the main energy carriers, with long diffusion and relaxation lifetimes.
Exciton Dynamics
As exciton dynamics are coupled to optical selection rules that stem from the atomic structure, enhanced exciton transport efficiency can be achieved through local structural modifications, such as:
- Atomic impurities
- Interface design
- Crystal fluctuations
Yet current theories lack a predictive description of the underlying interactions due to such structural modifications, highlighting the need for new tools that can capture these complex exciton dynamics.
Project Overview
Taking advantage of ever-growing computational frontiers, in this ERC project, we will derive and apply a new theoretical approach based on the predictive many-body perturbation theory to compute exciton dynamics as a function of structural complexity in emerging materials.
Research Focus
We will derive and examine our approach on three emerging excitonic systems of reduced dimensionality:
- Organic molecular crystals
- Layered transition metal dichalcogenides
- Two-dimensional hybrid perovskites [Obj.I]
As proof-of-concept, we will use our theory to study the effect of:
- Atomic defects and heterostructure compositions [Obj.II]
- Lattice fluctuations [Obj.III]
on the mechanisms dominating exciton relaxation and diffusion and their resulting mobility and lifetime.
Conclusion
Our research will thus allow for a comprehensive and predictive understanding of the underlying physics dominating exciton decay processes in materials of emerging interest via front-line computations, offering novel and tunable design principles for optimized functionality.
Financiële details & Tijdlijn
Financiële details
Subsidiebedrag | € 1.700.000 |
Totale projectbegroting | € 1.700.000 |
Tijdlijn
Startdatum | 1-2-2022 |
Einddatum | 31-1-2027 |
Subsidiejaar | 2022 |
Partners & Locaties
Projectpartners
- WEIZMANN INSTITUTE OF SCIENCEpenvoerder
Land(en)
Vergelijkbare projecten binnen European Research Council
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Exposing Hidden Electronic Configurations in Atomically Thin Superstructures with Extreme Light
The EXCITE project aims to explore light-induced hidden phases in correlated materials using advanced nanoscale spectroscopy to enhance ultrafast technology applications.
Tunable Interactions in 2-dimensional Materials for Quantum Matter and Light
This project aims to create a versatile 2D materials platform to explore and realize exotic quantum phases and non-classical light generation through interactions among optical excitations.
Isolating Many-Particle Correlations in Time and Space
The project aims to develop new experimental methods for analyzing multi-particle correlations in electronic excitations using advanced femtosecond laser techniques, enhancing understanding of complex quantum dynamics.
Excitonic 2D Metasurfaces for Active Multifunctional Flat Optics
This project aims to develop tunable optical elements using monolayer 2D quantum materials to create multifunctional metasurfaces for advanced applications in optics and imaging.
Watching Excitons in Photoactive Organic Frameworks
The WEPOF project aims to experimentally observe excitons in organic frameworks to enhance the design of efficient photoactive materials for renewable energy through artificial photosynthesis.