- Carbon Nanotubes in Composites
- 2D Materials and Applications
- Analytical Chemistry and Sensors
- Gas Sensing Nanomaterials and Sensors
- Advanced Photocatalysis Techniques
- Anodic Oxide Films and Nanostructures
- TiO2 Photocatalysis and Solar Cells
- MXene and MAX Phase Materials
- Mechanical and Optical Resonators
National University of Singapore
2011-2018
Shenzhen University
2018
Ames Research Center
2003
A gas sensor, fabricated by the simple casting of single-walled carbon nanotubes (SWNTs) on an interdigitated electrode (IDE), is presented for and organic vapor detection at room temperature. The sensor responses are linear concentrations sub ppm to hundreds with limits 44 ppb NO2 262 nitrotoluene. time order seconds response minutes recovery. variation sensitivity less than 6% all tested devices, comparable commercial metal oxide or polymer microfilm sensors while retaining...
To bridge the gap between laboratory research and commercial applications, it is vital to develop scalable methods produce large quantities of high-quality solution-processable few-layer phosphorene (FLBP). Here, we report an ultrafast cathodic expansion (in minutes) bulk black phosphorus in nonaqueous electrolyte tetraalkylammonium salts that allows for high-yield (>80%) synthesis nonoxidative BP flakes with high crystallinity ambient conditions. Our detailed mechanistic studies reveal...