ZnO Based Nanostructures Device Applications

ZnO nano materials are promising candidates for nano electronic and photonics. Compared with other semiconductor materials, ZnO has higher exciton binding engery(60 meV), more radiation hard and is multifunctional(piezoelectric, ferroelectric and ferromagnetic). Well-aligned ZnO nanowires can be grown on various substrates at low temperature by MOCVD. We have also demonstrated the selective growth of ZnO nanowires on patterned SOS(silicon on r-sapphire), which promise the integration of ZnO-based semiconductor and nanowire devices on a single chip. So far, the various applications of ZnO nano materials such as biosensors, UV detetors and FED are under way.

This research is sponsored by the National Science Foundation, CCR-0103096 "Feasibility Studies on ZnO Nanostructures And Their Device Applications".

SEM images of ZnO nanotips grown by MOCVD ZnO nanotip arrays grown on Si substrates ZnO nanotip arrays grown on C-plane sapphire substrates Selective growth of ZnO nanotip on patterned SOS substrates Paper published: 1 Selective MOCVD growth of ZnO nanotips, Muthukumar, S. Haifeng Sheng, Jian Zhong, Zheng Zhang, Emanetoglu, N.W., Yicheng Lu; Nanotechnology, IEEE, Volume 2, Issue 1, Mar 2003, pdf full-text BACK