QUANTUM-SIZE EFFECT OF CUCL MICROCRYSTALS-DOPED SIO2 GLASS THIN-FILMS

CuCl microcrystals-doped SiO2 glass thin films were successfully prepa red by rf(radio frequency)-sputtering method. The formation of CuCl mi crocrystals in the glass thin films has been explored by X-ray diffrac tion, transmission electron microscopy and X-ray photoelectron spectro scopy. The quantum size effect in CuCl was found from the blue shift o f exciton absortion peaks. Although some influence of the matrix on th e temperature dependent linewidth of the exciton peaks was observed, t he relationship between the amount of blue shift of the absorption edg e and the diameter of the CuCl microcrystals satisfied the theory for the quantum-size confinement of the exciton.