无ITO基电致变色器件功能层全溶液的印刷制备与性能研究  

All-solution Printed Preparation and Performance of ITO-free Electrochromic Functional Layer

作　　者：谭旭东 陈思涛 许馨 谢雯婷 王子健 王天昊 刘国栋 TAN Xudong;CHEN Sitao;XU Xin;XIE Wenting;WANG Zijian;WANG Tianhao;LIU Guodong(Sichuan Kuanzhai Printing Co.,Ltd.,Sichuan Deyang 618100,China;College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science&Technology,Xi'an 710021,China)

机构地区：[1]四川宽窄印务有限责任公司,四川德阳618100 [2]陕西科技大学轻工科学与工程学院,西安710021

出　　处：《包装工程》2025年第3期75-84,共10页Packaging Engineering

摘　　要：目的由于PET-ITO电极的刚性脆性限制了柔性ECD的性能及其发展,使用高导电率的纳米银线(AgNWs)电极对其进行改进。方法采用乳液聚合法制备PANI墨水,借助PVA薄膜的双功能性(黏附性和绝缘性),基于丝网印刷、喷涂印刷、涂布印刷3种工艺制备无ITO基的全印刷型PET-PVA-AgNWs-PANIECD。结果通过印刷制备复合PVA的PET-PVA-AgNWs-PANI电极具有良好的电学性能和稳定性(方阻稳定维持在10Ω/sq以下),以此电极为基础的ECD具有48.04%的最大光调制能力和一定的红外光调制能力。结论以印刷为基础制备的无ITO基多色电致变色器件具有良好的柔性和变色性能,可广泛应用于智能包装和智能窗户等场景。Since the rigidity and brittleness of PET-ITO electrodes limits the performance and development of flexible ECDs,the work aims to improve them with high conductivity silver nanowires(AgNWs).Therefore,the PANI ink was prepared by emulsion polymerization,and the ITO-free fully printed PET-PVA-AgNWs-PANI ECDs were prepared based on three processes,namely screen printing,spray printing,and coating printing,with the help of the bifunctionality of the PVA film(adhesive and insulating properties).The PET-PVA-AgNWs-PANI electrode with composite PVA prepared by printing had good electrical performance and stability(square resistance stably maintained below 10Ω/sq).The ECDs based on PET-PVA-AgNWs-PANI also featured 48.04%visible light modulation and certain infrared light modulation.The ITO-free multicolor electrochromic devices prepared on the basis of printing have good flexibility and color change performance,which can be used widely in the scenarios of smart packaging and smart windows.

关 键 词：纳米银线 印刷制备 电致变色 功能层 

分 类 号：TB34[一般工业技术—材料科学与工程]