Novel Cu-X Based Materials for Transparent Electronics

Principal Investigator: Dr Nick Bennett
Co-Investigator: Dr Daragh Byrne (DCU)
Funder: Royal Society
Partner: Dublin City University
Funding: EPSRC (Doctoral Training Award)

The potential applications for transparent electronics are diverse. Such materials can be used as transparent electrodes for solar cells, mobile devices or for next generation flexible electronics. The combination of conductivity and transparency is difficult to achieve, usually requiring complex compositions or very high doping of oxide materials. The most frequently used material for current generation transparent electronics is Indium Tin Oxide (ITO), a so-called Transparent Conductive Oxide (TCO). The present scarcity of indium (and thus its high commodity price) has promoted new research into finding a cost-competitive substitute. In addition, the great majority of materials idealised for transparent electronics are n-type.

Our project partners at Dublin City University (DCU) have developed new deposition techniques for the formation of low-cost p-type Cu-based semiconductor materials based on the halide and delafossite families. We are working jointly with DCU to maximise the performance of these materials and thoroughly test them for various applications.