Since 1996, he has been studying carbon-based materials, including CVD diamond and diamond-like carbon. From 1999, he has gradually focused his research on carbon nanotube (CNT)-related unique physical phenomena and electronic devices. In the field of CNT, Dr. Zhang and his group have extended their research to electron transport properties, charge trapping/transfer between CNTs and metal electrodes/adsorbed atomic and molecular species, thermal properties, and a variety of CNT electronic devices, including logic gates and simple circuits, pressure sensors, NH3 sensors, glucose sensors, nitrophenol sensors, and organophosphate compound sensors. Dr. Zhang has published more than 180 peer-reviewed scientific journal papers, and 61 of them address the properties and devices of CNTs. Related Titles