Hakan Selvi has had a paper accepted for publication in RSC Nanoscale describing SOI graphene-based photodetectors. In a collaboration between the Echtermeyer group and the Parkinson group at the University of Manchester, Hakan showed that by modifying the shape and thickness of the silicon, the electrical and optical characteristics could be optimized. In particular, a near 1GHz device response was demonstrated by suppressing diffusion currents.
Reference: H Selvi, E Hill, P Parkinson and T Echtermeyer, RSC Nanoscale 2018 (10.1039/C8NR05285A)
A welcome to Jasper, Vivek and Jiajun from the Crozier group at the University of Melbourne who visit our group for the week. This visit, funded through the Manchester-Melbourne linkage program, will allow the Melbourne group to use some of the microscopy facilities within the Photon Science Institute to understand more about their photonic devices.
A new paper describing the development and characterisation of high-speed Graphene-Silicon Schottky photodetectors has been published in RSC Nanoscale.
The work, led by PhD student Hakan Selvi and Tim Echtermeyer includes high-speed device characterisation performed in the Parkinson lab.
The new devices are broadband, high-speed, large-area and low-cost photodetectors which make use of the high transparancy and conductivity of graphene. These devices pave the way towards real-world applications for Graphene-Silicon detectors.
The paper is available at http://dx.doi.org/10.1039/C7NR09591K