We study the origin and role of inhomogeneity in novel optoelectronic materials using a variety of experimental methods; how variations in materials at the nanoscale determine device performance for applications including photovolatics, display materials and photosensors. Our current research is spans four primary themes:
High-throughput semiconductor nano-optoelectronics methodology – why and how we should measure statistically meaningful datasets to reveal yield and correlations
Novel optoelectronic materials for photonic device applications – using correlative approaches to understand energy dynamics in emerging materials platforms (2D, perovskite, self-assembled, molecular and confined)
Ultrafast and single photon optical techniques – studying energy dynamics on their natural length and timescales using single photon events
Holistic data analysis – using correlated measurements to produce a reproducible and self-consistent model of device performance
We welcome interest from anyone who wants to join the group for MPhys, PhD or postdoctoral research.
The group will host another 10-week summer studentship, funded through the Rank Prize Funds. The project on “Rapid, multispectral photovoltaic performance mapping using structured light illumination” will see one of our 3rd year undergraduate students Edoardo Altamura design, build and test a device for high speed characterisation.
We look forward to hosting Edoardo through the summer, and welcome any funded applications for summer projects in the group.
Our recent work on single-nanowire terahertz detectors has been published in a special issue of the Lithuanian Journal of Physics, celebrating the 70th birthday of Prof. Arunas Krotkus.
In this work, Dr Kun Peng used single-nanowire terahertz detectors with different capping to understand the relative contribution of the core and cap to the detected THz signal. By tuning the cap to be thicker, it is possible to engineer these detectors to have shorter carrier lifetimes and as a result, to exhibit direct THz field detection.