Atomistic and multi-scale simulations of (In,Ga)N heterostructures: Insights into carrier transport, radiative, non-radiative recombination properties
| Dates: | 7 December 2022 |
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| Times: | 12:00 - 13:00 |
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| What is it: | Seminar |
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| Organiser: | Photon Science Institute |
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| Who is it for: | University staff, Current University students |
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| Speaker: | Dr. Stefan Schulz |
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Join us for this PSI seminar with guest speaker Dr Stefan Schulz. Semiconductor nanostructures utilizing indium gallium nitride ((In,Ga)N) alloys have attracted considerable research interest due to their potential for optoelectronic device applications but also recently as sources for non-classical light emission. However, and in comparison to other III-V semiconductor heterostructures, (In,Ga)N-based systems exhibit very different fundamental properties. This starts with the underlying crystal structure (preferentially wurtzite vs. zincblende), ranges over to the presence of very strong electrostatic built-in fields and ultimately the observation of significant carrier localization effects in (In,Ga)N alloys. In this talk, the impact of (random) alloy fluctuations on charge carrier transport, radiative and non-radiative recombination processes in (In,Ga)N-based heterostructures will be discussed.
Speaker
Dr. Stefan Schulz
Organisation: University of Bath
Biography: Dr Stefan Schulz did his undergraduate studies and PhD work at the University of Bremen, Germany. In his PhD he developed atomistic tight-binding models and configuration interactions schemes for the description of the electronic and optical properties of semiconductor quantum dots. He joined the Photonics Theory Group, at the Tyndall National Institute in Cork, Ireland, with a Feodor-Lynen Research-Fellowship from the Humboldt Foundation in 2008. He was promoted to Staff Researcher and Senior Staff Researcher in 2012 and 2019, respectively. He is a principle investigator in the Science Foundation Ireland funded Irish Photonic Integration Centre (IPIC) since 2019 and a Lecturer at University College Cork, Department of Physics, since 2022..
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