Fig. 1From: Electrospun Polytetrafluoroethylene Nanofibrous Membrane for High-Performance Self-Powered Sensorsa Schematic diagram showing the two-step fabrication of PTFE nanofibrous membrane: (1) electrospinning to obtain PTFE-PEO nanofibrous membrane and (2) thermal treatment to remove PEO from the electrospun PTFE-PEO nanofibrous membrane. b Digital photograph and c SEM image of the PTFE nanofibrous membrane with the inset showing a magnified view. d FTIR spectra of the (1) pristine PEO, (2) pristine PTFE, (3) electrospun PTFE-PEO nanofibrous membrane, and the (4) PTFE nanofibrous membrane, with the dashed orange lines indicate the main peaks of PEOBack to article page