Solar Blind MgZnO Photodetectors

This Phase I program is focused on enhancement of the performance of MgZnO based solar blind detectors. MgZnO alloys have superior optoelectronic properties with bandgaps suitable for solar blind detection. Issues related to doping and miscibility will be addressed. This will involve the use of advanced MOCVD and MBE growth techniques and consideration of both Schottky and p-n junction devices. Novel doping strategies will be explored as well as the use of nearly lattice matched oxide substrates. Optimal device design will be achieved with the aid of simulation software. Detectors will be fabricated to demonstrate the feasibility of the technology. These robust, compact devices are sought as replacements for photomultiplier tubes in current use.