ZnMgO materials with tunable band gap for solar-blind UV sensors - ZMOMUVS

Project summary

Deep UV photon sensors based on wide bandgap semiconductors can be used as biological and chemical sensors for ozone detection, and determination of pollution levels in biological agent. The concept is to use the ZnO-MgO compound, with tunable bandgap from 3.3~7.8 eV, thus significantly enhancing the ability to detect signals. Our results indicated that the limitation of ZnO-MgO mutual solubilities can be broken by stablizing the high MgO-content wurtzite and high ZnO-content rocksalt Zn1-xMgxO epilayers by using proper substrates, like ScAlMgO4, and MgO. This group includes five partners: Partner 1 & 5 (Taiwan) will be responsible for the growth of ultra-wide bandgap Zn1-xMgxO heterostructures. Partners 2-4 (Latvia & Lithuania) study opto-electrical properties. Participation in this project will increase technology level up to TRL 4 in Taiwan and TRL 3 in Latvia and Lithuania. We believe this project will bring benefits and provide new contributions to the European society.