Fig. 2From: Self-Polarization of PVDF Film Triggered by Hydrophilic Treatment for Pyroelectric Sensor with Ultra-Low Piezoelectric Noisea CA of the glass substrates treated in piranha for different time, inset is the peeling force as a function of treatment time. b DSC pattern of PVDF samples. c FTIR spectra of PVDF samples, inset is β-phase content as a function of treatment time calculated from the FTIR results. d Pyroelectric response of PVDF samples without undergoing thermal poling, inset is the simplified schematics of homemade signal readout circuitBack to article page