Ce介电增强WO_(3)在摩擦纳米发电机中的应用  

Ce dielectric enhanced WO_(3) for application in triboelectric nanogenerator

作　　者：任远航 谢远航 张雨涵 陈杰 万步勇[1] 杨晓红[1] REN Yuanhang;XIE Yuanhang;ZHANG Yuhan;CHEN Jie;WAN Buyong;YANG Xiaohong(College of Physics and Electronic Engineering,Chongqing Normal University,Chongqing 401331,China)

机构地区：[1]重庆师范大学物理与电子工程学院,重庆401331

出　　处：《功能材料》2024年第8期8214-8220,共7页Journal of Functional Materials

基　　金：国家自然科学基金(52302219);重庆市教委重点科技项目(KJZD-K202200505)。

摘　　要：采用水热法制备WO_(3)和Ce掺杂的WO_(3)(Ce:WO_(3))纳米颗粒,以Ce:WO_(3)填充聚二甲基硅氧烷(PDMS)制备复合膜,研究Ce掺杂对WO_(3)颗粒及复合膜介电性能的影响,并以Ce:WO_(3)/PDMS复合膜作为摩擦纳米发电机(TENG)的摩擦层(Ce:WO_(3)/PDMS-TENG),研究Ce介电增强WO_(3)对TENG输出性能的影响。结果表明Ce掺杂对WO_(3)纳米颗粒的晶体结构和晶粒尺寸几乎没有影响,但能有效增强纳米WO_(3)的介电性能,介电常数由9.99提升至20.83。体积比为8%、掺杂比1.5%Ce:WO_(3)/PDMS-TENG,相比纯PDMS-TENG输出性能有显著提升,开路电压由114 V提升至279 V、短路电流由1.38μA提升至7.02μA、转移电荷由35.7nC提升至99.7nC。WO_(3) and Ce-doped WO_(3)(Ce:WO_(3))nanoparticles were prepared by a hydrothermal method,and the Ce:WO_(3) filled polydimethylsiloxane(PDMS)composite membranes were prepared.The influence of Ce doping on the dielectric properties of WO_(3) particles and composite membranes were studied.And the Ce:WO_(3)/PDMS composite membranes was used as the friction layer of TENG(Ce:WO_(3)/PDMS-TENG)to study the effect of Ce dielectric enhancement of WO_(3) on the output performance of TENG.The results indicate that the Ce-doping has no effect on the crystal structure and grain size of WO_(3) nanoparticle,but the relative dielectric constant of WO_(3) can be effectively increased from 9.99 to 20.83.Compared with the pure PDMS-TENG,the output performance of 1.5 mol%Ce:WO_(3)/PDMS-TENG was significantly improved,with an increase in the open-circuit voltage from 114 V to 279 V,the short-circuit current from 1.38μA to 7.02μA,and the transferred charge from 35.7 nC to 99.7 nC.

关 键 词：WO_(3)颗粒 CE掺杂 介电常数 摩擦纳米发电机 

分 类 号：O472.4[理学—半导体物理]