All-fiber based highly flexible optically transparent piezoelectric harvester for self-powered wearable deformation sensor.

Autor: Hsi-Chun Ho, 何熙鈞
Rok vydání: 2015
Druh dokumentu: 學位論文 ; thesis
Popis: 103
This thesis mainly research on fabrication of nanogenerator (NG), piezoelectric technology and application in electrospinning. The focus of the study is (1) A flexible, self-powered deformation sensor based on NG (2) Pattern transfer of aligned Au-coated nano wires as flexible transparent electrode using electrospun nanofibers template, (3) All-fiber transparent piezoelectric harvester with a cooperatively enhanced structure. We demonstrate a direct-write, in-situ poled polyvinylidene fluoride (PVDF) micro/nanofibers (MNFs) arrays that could functions as a self-powered active deformation sensor. The device could easily detect, and also discriminate, various human motions related to the extension and flexion of the ankle. Furthermore, we demonstrated a highly-flexible all-fiber based transparent piezoelectric harvester (ATPH). Cooperatively enhanced effect was also demonstrated in ATPHs performance improvement by rolling the device to a cylindrical shape.
Databáze: Networked Digital Library of Theses & Dissertations