The Faculty of Science and Engineering Physics Department presents: 

Flexible Nanoscale Electronics for Emerging Technologies seminar with UKRI Future Leaders Fellow, Dr Dimitra Georgiadou.

Modern electronic devices are founded on semiconductor technology, with diodes and transistors being the cornerstone of solid-state electronics. The majority of diode-based devices, such as laser and light-emitting diodes (LEDs), Schottky diodes and rectifiers, photodiodes and solar cells, rely on vertical structures, where the semiconductor is “sandwiched” between the two electrodes. On the other hand, coplanar electrode architectures present several advantages, such as the realisation of nanodevices with lower power consumption, faster speed and higher level of integration. However, their commercial exploitation has been hitherto impeded by technological bottlenecks, owing to the incompatibility of currently available fabrication techniques with industrial upscaling.

Adhesion lithography (a-Lith) is an innovative low-cost high-throughput technique for the fabrication of large aspect ratio (>100,000,000) metal electrode nanogaps (<15 nm) on a variety of substrates. It will be shown how these electrodes have been implemented in the fabrication of high-speed diodes for advanced electronic applications, in particular, radiofrequency identification tags (RFIDs) and RF energy harvesters, nanoscale LEDs, photodetectors and resistive switching memories using a variety of advanced materials deposited from solution at low temperatures, fully compatible with plastic (flexible) substrates.

For futher information, please contact Departmental PGR Director, Dr Emanuele Verrelli.