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PHOTOLUMINESCENT ENHANCEMENT OF HgWO4 NANOFILMS USING TiO2 ADJUSTMENT
XIN-YAO HE,RUNPING JIA,CHUN-FA OUYANG,XIA WANG,JUN-HE YANG 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2007 NANO Vol.2 No.6
As a new nanomaterial, HgWO4 nanofilms are prepared by the self-inventive technique of collodion nanoparticles-dispersal and film-formation. Their photoluminescent properties are enhanced and then controlled through nano-TiO2 doping. These approaches not only ensure film uniformity and fluorescence (FL) enhancement, but also realize a FL increase/decrease conversion effect. The relationships between HgWO4 nanofilms' PL intensities and TiO2 doped amounts are in good agreement with Gaussion function, and maximum PL intensities of HgWO4 nanofilms are located at 3.8% ratio of TiO2 nanoparticles.