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White achievement
The preparation of light elements (boron, carbon, nitrogen, etc.) has made progress. ) Nanomaterials and the relationship between their properties and structures. 1. In cooperation with others, an advanced large-scale experimental instrument-in-situ microstructure analysis and performance measurement combined system was successfully developed, which realized in-situ manipulation, performance measurement and high-resolution structural characterization of small-scale materials under transmission electron microscope. 2. At the level of lattice resolution, the conductivity of boron nitride nanotubes changes with the structure, and the transition process from insulator to semiconductor is observed. It is found that the band gap of boron nitride nanotubes decreases due to radial elastic deformation. It is found that boron, carbon and nitrogen nanofiber films have blue-purple fluorescence properties. A series of achievements have been made in the study of the mechanics and field electron emission characteristics of a single nanostructure. 3. A set of low-temperature plasma chemical vapor deposition technology was developed, and multi-walled carbon nanotubes and single-walled boron-carbon-nitrogen compound nanotubes with almost the same chirality in each carbon layer were prepared. These works are important explorations for the controllable growth of nanotube fine structure and the synthesis of pure semiconductor nanotubes. More than 60 SCI papers were published in nature nanotechnology/nanolett/jacs/PRL and other magazines, including 20 APL papers; Cited by other people's SCI documents 1000 times or more, and the highest citation of a single article 140 times or more; A total of 8 invention patents were applied. For JACS, JMR and nano-west. &; Critics of magazines such as Nanotech Nol and Sol. Railway station communication, mater. Research on bulls and Mod. Physics, Ritter. He made more than 65,438+00 invited reports at international and domestic academic conferences.