Roy started his research on light emitting materials for his PhD, mainly on ESR (Electron Spin Resonance) analysis of organic materials with Dr. R. B. Pode (Nagpur), Dr. Baldacchini (ENEA, Rome) and Dr. T. K. Gundurao (IIT, Bombay). After his PhD, he started working on the growth of wide band gap nano-structures (ZnO) and their physical (optical & magnetic) properties with the intention that they could be used in electronic devices as nano-composites. For his post-doctoral studies (with Dr. Michele Muccini and his group at ISMN, CNR di Bologna, Italy), he focused on the growth of various organic molecules for light emitting transistors (LET) and opto-electronic characterization of LETs. In 2004, he joined the Department of Chemistry at The University of Hong Kong and he focused on various molecular materials (with Prof. Chi-Ming Che and his group) for electronic device applications.
Currently he is leading a group of Physicists, Chemists and Engineers for the fabrication of functional self-assembly materials to devices and integration of such devices for printed electronics and energy harvesting devices.
Research Assistant, 2002 – 2003.
Department of Electrical and Electronic Engineering,
The University of Hong Kong, Hong Kong.
Post – Doctoral Fellow, 2003 – 2004,
ISMN, Council for National Research, Bologna, Italy.
Research Associate, July 2004 – Feb’2005.
Research Assistant Professor, Mar’ 2005 – Dec’ 2008.
Department of Chemistry, The University of Hong Kong.
Assistant Professor, Dec’ 2008 – June 2012
Associate Professor, From July 2012
Department of Physics & Materials Science, City University of Hong Kong.
More details please go to MOLEC website: www.molec.hk
Molecular electronics, Molecular self-assembly, Nano-Photonics, Nano-materials science, Bio-electronics, Renewable energy (Solar and Fuel cells) and Printed electronics.
Roy mainly focuses on molecular materials (Inorganic, organic and biological molecules) for electronic devices such as Thin Film Transistors (TFTs), Photovoltaic devices and Sensors. His research is interdisciplinary and it’s a blend of Physics, Materials science, Engineering, and Biology.