WO3 and Ce-doped WO3(Ce∶WO3)nanoparticles were prepared by a hydrothermal method,and the Ce∶WO3 filled polydimethylsiloxane(PDMS)composite membranes were prepared.The influence of Ce doping on the dielectric properties of WO3 particles and composite membranes were studied.And the Ce∶WO3/PDMS composite membranes was used as the friction layer of TENG(Ce∶WO3/PDMS-TENG)to study the effect of Ce dielectric enhancement of WO3 on the output performance of TENG.The results indicate that the Ce-doping has no effect on the crystal structure and grain size of WO3 nanoparticle,but the relative dielectric constant of WO3 can be effectively increased from 9.99 to 20.83.Compared with the pure PDMS-TENG,the output per-formance of 1.5 mol％Ce∶WO3/PDMS-TENG was significantly improved,with an increase in the open-circuit voltage from 114 V to 279 V,the short-circuit current from 1.38 μA to 7.02 μA,and the transferred charge from 35.7 nC to 99.7 nC.
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