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Excitons lie at the heart of many important natural and technological processes including photosynthesis, vision, energy efficient lighting and solar energy conversion. An exciton is a coulombically bound electron-hole pair that is generated in a material either by light absorption or electrical charge injection. Because of the strong coulomb interactions, excitonic materials are very efficient absorbers of light, possess excellent light emission properties, and can exhibit a variety of unique phenomena, such as up- or down- conversion, that can enable us to move beyond the efficiency limits of existing materials. This Masters course provides an overview of exciton science. Advanced topics include techniques to probe excitons, the properties of various materials classes that involve excitonic interactions and applications in photosynthesis, solar cells and light emitting technologies.
Intended learning outcomes
- Explain what an exciton is.
- Explain the relaxation processes of excitons
- Discuss the role of excitons in solar cell and display technologies
- Explain the origins of quantum confinement in excitonic systems
- Describe the photosynthetic process and understand the involvement of excitons
- Discuss light harvesting in natural and artificial systems
- advanced problem-solving and critical thinking skills
- an ability to evaluate the professional literature
- an understanding of the changing knowledge base
- a capacity to apply concepts developed in one area to a different context
- the ability to use conceptual models to rationalize experimental observations
Last updated: 29 October 2019