I am using time-resolved spectroscopy techniques to investigate charge transport in metal halide perovskites (MHPs). MHPs are a class of semiconducting materials that have great potential as absorbers in next-generation solar cells due to their outstanding optoelectronic properties. In particular, I am interested in using terahertz radiation to probe the transient photoconductivity of MHPs at picosecond timescales using Optical-Pump Terahertz-Probe spectroscopy (OPTP), as shown in the diagram below. This technique allows the mobility and time evolution of a photo-generated population of charge carriers to be investigated.
My speciality is studying charge carrier dynamics in quasi-2D layered MHP materials whereupon electronic confinement within the layers profoundly impacts the dynamics of photo-excited charge carriers.
I am a final-year PhD Student in the Ultrafast and THz photonics research group which I joined in the summer of 2019. Prior to this I received an MPhys degree in Physics from Corpus Christi College, Oxford. My fourth-year project was supervised by Prof. Henry Snaith and Dr. Bernard Wenger of the Photovoltaic and optoelectronic device group. I constructed apparatus for electroluminescence imaging of metal halide perovskite optoelectronic devices. Using this system I studied devices created by other group members such as 2D/3D hybrid perovskite LEDs and large surface area perovskite solar cells. This experimental tool proved valuable for investigating spatial inhomogeneity and long-term transient changes in the devices; in addition to rapid, non-destructive quality control.
I am currently a demonstrator in the second-year undergraduate electronics lab.
Jake D Hutchinson, Edoardo Ruggeri, Jack M Woolley, Géraud Delport, Sam D Stranks, and Rebecca L Milot (2023). "Resolving the Ultrafast Charge Carrier Dynamics of 2D and 3D Domains within a Mixed 2D/3D Lead-Tin PerovskiteLink opens in a new window". In: Advanced Functional Materials.
Jake D Hutchinson, Edoardo Ruggeri, Jack M Woolley, Sam D Stranks, and Rebecca L Milot (2022). “Ultrafast Photoexcited Carrier Dynamics in 2D/3D Lead-Tin Perovskites with Tuneable Dimensionality”.
In: Proc. of International Conference on Hybrid and Organic Photovoltaics
Xinyun Liu, Andrea Giunto, Jake D Hutchinson, Nicolas Humblot, Djamshid Damry, Rebecca L Milot,
Anna Fontcuberta i Morral, and Jessica Boland (2022). “THz characterization of GeSn monocrystalline thin filmsLink opens in a new window”. In: 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves
(IRMMW-THz). IEEE, pp. 1–2.