Fabrication of Langmuir-Blodgett Film of Surface-Modified ZnO Nanoparticles Prepared by Solution Process

抄録

ZnO nanoparticles were prepared by a solution method and a film of these nanoparticles was prepared by the Langmuir-Blodgett (LB) method. To prepare the LB film, the dispersibilities of ZnO nanoparticles in water and organic solvents were examined. The surface of the ZnO nanoparticles was modified by a surfactant, cetyltrimethylammonium bromide (CTAB), to improve their dispersibility. Using water as a solvent, dispersibility was improved by changing the CTAB concentration. However, aggregation of the nanoparticles occurred when they were transferred to chloroform to spread on water for fabrication of the LB film. With an organic solvent, aggregation of the ZnO nanoparticles in the LB film was improved when chloroform was used.