摘要
以聚乙烯基吡咯烷酮(PVP)为稳定剂,聚乙二醇(EG)为还原剂,采用聚醇法[1]制备了银纳米线。根据硝酸银/PVP比例的不同制备了4种类型的银纳米线样品,其中样品D直径最均匀,杂质含量最低。通过改变硝酸银/PVP比例、加入速率和PVP分子量,可对对银纳米线的长度和直径进行控制,得到了小直径(17~100 nm)、大长度(30 nm到100μm以上)的银纳米线。采用XRD、SEM、TEM和紫外-可见光谱对银纳米线的结构进行了表征。采用不同径长比纳米银线混合,以聚对苯二甲酸二乙酯(PET)和玻璃为衬底,分别使用可扩展层压辅助溶液法和旋转涂布法制备了2种透明导电薄膜,其方阻分别为17和26?/sq,透光率分别为88%和80%。
Different ratios of poly(vinyl)pyrrolidone polymer (PVP) and AgNO3 were used for the production of silver nanowires (AgNWs) by using polyol method[1]. PVP was used as the stabilizer and ethylene glycol (EG) was used as the reducing reagent. There are four types of samples which were prepared by using AgNO3/PVP with different ratios: the sample D of AgNWs has a more uniform diameter and less impurity than the others. AgNWs lengths and diameter were controlled by changing the AgNO3/PVP ratio, injection rates and different molecular weight of PVP. We demonstrate that the preparation of AgNWs with a thin diameter (17~100 nm) and long length (30 nm to above 100 μm) were used by polyol method. AgNWs' structures were characterized by XRD, SEM, TEM and UV-vis, respectively. The fabrication of transparent conductive films of poly ethylene terephathalate(PET) and glass substrate using a scalable lamination-assisted solution method and spin-coating process is described in this study. For transparent conductive film of PET and glass substrate, AgNWs inks with a resistance of 17, 26 ?/sq and transmittance of 88%, 80% respectively were produced using a mixture of AgNWs with high and low aspect ratio.
出处
《贵金属》
CAS
CSCD
北大核心
2017年第B10期90-99,共10页
Precious Metals