Research Direction |
1.This group uses two MOCVD and two MBE reactors for the studies of crystal growth (GaN and ZnO) and LED fabrication. Breakthroughs include: (1) fabrication of regularly patterned, multi-section, core-shell nitride nanorod LED array device; (2) fabrication of surface plasmon coupled LEDs with various metal nanostructures for enhancing emission efficiency, reducing efficiency droop effect, and increasing LED modulation bandwidth (reaching the world record of 528.8 MHz); (3) growth of highly conductive Ga-doped ZnO (GaZnO) nanoneedles for field emission and light extraction applications; (4) fabrication of bendable GaN-based LED of enhanced efficiency; and (5) highly conductive GaN-based p-type layer for LED application. 2. In plasmonics-based bio-photonics research, recent breakthroughs include the fabrication of surface-modified Au nanorings with localized surface plasmon resonance wavelength in the range of 1000-1300 nm to achieve the deepest light penetration into tissue for the demonstration of simultaneous photothermal and photodynamic therapies of tumor. |