Title: Monolithic integration of III-V semiconductor nanowires with silicon platform for optoelectronics 

Speaker: Dr Q. D. Zhuang (Physics Department, Lancaster University，UK)   

Time: Dec. 18, 2015 11:00AM 

Venue: LED Meeting Room, Building 5, IOS, CAS 

Abstract: The integration of III-V compound semiconductor materials with silicon is one of the most challenges in the research of electronic and photonic materials and devices. The combination has advantages to exploit the unique optical and electronic functionality of III–V technology with the advanced signal processing capabilities and low-cost volume production techniques associated with silicon. Of particular interest is the monolithic integration of III-V semiconductor nanowires with Si platform and/or newly emerging 2D materials which are not possible in conventional thin film architecture. This talk will present our recent research outcomes on monolithically epitaxial integration of InAsSb nanowires on silicon and graphene/Si platforms with the discovery of the fundamental properties of the resulting hybrid nanostructures, followed by the demonstration of proof-of-concept devices in infrared photodetection. The potential further device applications will be also briefed.

Biography： Dr QianDong Zhuang is a Senior Lecturer in the Physics Department at Lancaster University, UK. He gained his PhD from the Institute of Semiconductors, CAS, China in 1999. Since then he worked at Nanyang Technological University (Singapore) and Glasgow University (UK). In 2003, he joined Lancaster University and established the MBE Research Laboratory in the Physics Department where he has been leading the research in MBE grown semiconductor nanostructures. His current research is focused on novel dissimilar alloys, quantum dots, nanowires, semiconductor/graphene hybrid material systems, ranging from MBE epitaxial growth to development of optoelectronics through fundamental physics studies. He has published 2 book chapters and more than 70 papers in peer-reviewed scientific journals including Nano Letters, Nature Communication, Nanoscale, Applied Physics Letters and Physical Review B. He is an Editorial Member of Nature Scientific Reports.

http://www.physics.lancs.ac.uk/people/qiandong-zhuang