Self assembly of functionalized single-walled carbon nanotube

The self assemble film of single - walled carbon nanotube (SWCNT) based on diazoresins bas been prepared on CaF2 and mica substrates. By functionaliza tion, the ends of SWCNT were turned into the carboxyl group and carboxyl ac id group, which can react with the diazo group of diazoresins via coulombic effect. The process of deposition of film on the mica substrate can be cha racterized with UV - vis spectra. The film is photosensitive. Under UV irra diation, the bond between carboxyl group and diazo group will change into c ovalent, which enhance the stability of the film. The photodecomposition of the film follows the kinetics of first - order reaction. The results of IR spectra prove the existence of the self assemble film of SWCNT and diazore sins on CaF2 substrates.