银纳米线的快速合成及在柔性传感器中的应用  

Rapid Synthesis of Silver Nanowires and Application in Flexible Sensors

作　　者：蔡欣欣 卞福萍 李韦龙 林树东[1,2,3,4,5] CAI Xinxin;BIAN Fuping;LI Weilong;LIN Shudong(Guangzhou Institute of Chemistry,Chinese Academy of Sciences,Guangzhou 510650,China;University of Chinese Academy of Sciences,Beijing100049,China;CAS Engineering Laboratory for Special Fine Chemicals,Guangzhou 510650,China;CASH GCC Shaoguan Research Institute ofAdvanced Materials,Shaoguan 512400,China;CASH GCC Fine Chemicals Incubator(Nanxiong)Co.,Ltd,Nanxiong 512400,China)

机构地区：[1]中国科学院广州化学研究所,广东广州510650 [2]中国科学院大学,北京101408 [3]中国科学院新型特种精细化学品工程实验室,广东广州510650 [4]国科广化韶关新材料研究院,广东韶关512400 [5]国科广化精细化工孵化器(南雄)有限公司,广东南雄512400

出　　处：《广州化学》2024年第1期7-10,I0001,共5页Guangzhou Chemistry

基　　金：2021年广东省自然科学基金面上项目(2021A1515012334)。

摘　　要：针对传统多元醇方法合成银纳米线(AgNWs)产生大量的银纳米颗粒和银纳米棒等副产物,对后续材料加工步骤带来许多困难,并降低该材料在器件应用中的性能的缺点,采用聚乙烯吡咯烷酮(PVP)、乙二醇(EG)、NaCl和AgNO_(3)等原料通过多元醇二次加热的方法合成了长径比为1000的AgNWs。通过SEM、UV-Vis和XRD对Ag NWs的结构和形态进行了表征,表明合成了几乎没有其他银纳米结构的AgNWs。将Ag NWs应用在实际中,以AgNWs为填料,聚二甲基硅氧烷(PDMS)为基底,制备出柔性应变传感器,制备出的柔性传感器具有良好的应变能力,在100%~150%的应变条件下,灵敏度达到2.405。In view of the shortcomings of the traditional polyol method for synthesizing silver nanowires(AgNWs),which produces a large amount of by-products such as silver nanoparticles and silver nanorods,which brings many difficulties to subsequent material processing steps and reduces the performance of the material in device applications.AgNWs with an aspect ratio of 1000 were synthesized using raw materials such as polyvinylpyrrolidone(PVP),ethylene glycol(EG),NaCl and AgNO_(3) through secondary heating of polyol.The structure and morphology of AgNWs were characterized by SEM,UV-Vis and XRD,indicating that AgNWs with almost no other silver nanostructures were synthesized.Applying AgNWs in practice,a flexible strain sensor was prepared using AgNWs as filler and polydimethylsiloxane(PDMS)as the substrate.The prepared flexible sensor has good strain capacity,and under the strain condition of 100%~150%,the sensitivity reaches 2.405.

关 键 词：AgNWs 多元醇法 PDMS 传感性能 柔性传感器 

分 类 号：O614.122[理学—无机化学]