文献类型：期刊文献

英文题名：Flexible strain sensor based on core-shell Fe@PANI nanowires with superior sensing performance and stability

作者：Feng, Zuolong[1]

机构：[1]East China Univ Sci & Technol, Sch Sports Sci & Engn, Shanghai 200237, Peoples R China

年份：2026

卷号：414

外文期刊名：MATERIALS LETTERS

收录：;EI(收录号：20261420402425);WOS:【SCI-EXPANDED(收录号:WOS:001735458900001)】；

语种：英文

外文关键词：Flexible strain sensor; Fe@PANI; Sensing performances; Core-shell structure

摘要：In this work, core-shell Fe@PANI nanowires (NWs) were synthesized and used as conductive material to prepare flexible strain sensor. The Fe@PANI NWs have typical core-shell structure and uniform element distribution. The flexible Fe@PANI NWs sensor exhibits rapid response (117 ms for loading and 103 ms for unloading at 30% strain), wide stretching range (up to 130%), high sensitivity (a maximum gauge factor of 24.15) and excellent cycle stability over 3000 cycles. XPS analysis suggests that the inhibiting oxidation of Fe caused by PANI shell contributes the enhancement in sensing performance and stability.