Design and Development of Paper/ZnO–SnO ₂ Heterostructured Ultra-Fast TENG Based LPG Sensor

Abstract

This work establishes a very simple and economical preparation of paper-based triboelectric nanogenerators for self-powered LPG sensing. Magnification in the output of TENG was achieved by ZnO/SnO ₂ synthesized by hydrothermal. This material has been thoroughly characterized through XRD, UV, FESEM, FTIR, and Nanozetasizer. The average crystallite size of the heterostructure was obtained as 17.59 nm. Bandgap of ZnO/SnO ₂ material was found as 3.49 eV. FESEM exhibits that present heterostructure material exhibits spherical nature with lots of voids on the film surface. From Nanozetasizer, the diameter of particles resides between the range 50–80 nm with an average particle size as 63.23 nm. The fabricated TENG generates a maximum output voltage of ∼75 volts which is more than the output of paper-based TENG. This TENG was used as a power source to operate a resistive LPG sensing film. The maximum response of 24 and minimum response-recovery times of 120–135 ms were observed, which makes this LPG sensing device ultra-fast.