电子元件与材料2025，Vol.44Issue(9)：1011-1017,7.DOI:10.14106/j.cnki.1001-2028.2025.0085
无铅KNN/PAN柔性复合薄膜压电纳米发电机
Piezoelectric nanogenerator based on lead-free KNN/PAN flexible composite films
摘要
Abstract
Potassium sodium niobate(KNN)has a high Curie temperature and a large piezoelectric coefficient,but its application in flexible wearable devices is limited by poor flexibility.Pure-phase KNN was successfully synthesized by a solid-state reaction technique at 950 ℃,and its morphology and crystal phase were characterized.The KNN/PAN flexible composite film piezoelectric nanogenerator(PNG)was prepared,and the effect of the doping concentration of KNN on its piezoelectric performance was systematically investigated.The results showed that the size of KNN particles ranged around(300±100)nm and that the particles exhibited an orthorhombic phase at room temperature.The piezoelectric performance of the KNN/PAN flexible composite film PNG was proportional to the KNN concentration.When the doping concentration of KNN was 50％(mass fraction),the internal resistance of the KNN/PAN flexible composite film PNG was about 5 MΩ,the open-circuit voltage and short-circuit current were 7.6 V and 1.33 μA,respectively,and the maximum output power was about 3.21 μW.After cyclic operation for 1000 s,the output signal of the KNN/PAN flexible composite film PNG remained stable.The results indicated that increasing the doping concentration of KNN could improve the piezoelectric performance of the KNN/PAN flexible composite material,and the KNN/PAN flexible composite film PNG is expected to be widely used as a self-powered pressure sensor in wearable electronic devices.关键词
聚丙烯腈(PAN)/铌酸钾钠(KNN)/柔性复合薄膜/压电性能/压电纳米发电机Key words
polyacrylonitrile(PAN)/potassium sodium niobate(KNN)/flexible composite film/piezoelectric performance/piezoelectric nanogenerator分类
动力与电气工程引用本文复制引用
任源楠,李银辉,高飞,李旗国,李朋伟..无铅KNN/PAN柔性复合薄膜压电纳米发电机[J].电子元件与材料,2025,44(9):1011-1017,7.基金项目
国家自然科学基金(52075361,52205539) （52075361,52205539）
山西省科技重大专项(2020102003) （2020102003）
山西省青年科学基金(20210302124046) （20210302124046）
吕梁市校地合作重点研发专项(2022XDHZ08) （2022XDHZ08）
山西省面上科学基金(20210302123156) （20210302123156）
智能制造装备与技术全国重点实验室(华中科技大学)(IMETKF2025016) （华中科技大学）
