Fabrication of silver-doped zinc oxide nanorods piezoelectric nanogenerator on cotton fabric to utilize and optimize the charging system

Abstract

Textile-based piezoelectric nanogenerator generates electrical energy from human motion. Here a novel type of textile-based piezoelectric nanogenerator is reported which is fabricated using the growth of silver-doped zinc oxide on carton fabric. Along with the optical and structural characterization of silver-doped zinc oxide nanorods, the electrical characterization was also performed for silver-doped zinc oxide piezoelectric nanogenerator. The silver-doped zinc oxide piezoelectric nanogenerator was found to generate three times greater power compared to undoped zinc oxide piezoelectric nanogenerator. By applying external mechanical force of 3 kgf and 31 MΩ of load resistance, the silver-doped zinc oxide piezoelectric nanogenerator generated an output power density of 1.45 mW cm−2. The effect of load resistance and load capacitor was determined and optimum values were calculated. The maximum output power was observed at a load resistance of 31 MΩ. The silver-doped zinc oxide piezoelectric nanogenerator was utilized to charge load capacitors and found that maximum energy could be stored at optimum load capacitance of 22 nF in 600 s (1800 cycles). This research may provide the opportunity to design high-output textile-based nanogenerators for practical applications like powering portable devices and sensors.

Incorporation of zinc oxide nanoparticles in cotton textiles for ultraviolet light protection and antibacterial activities

“…The applications of nanotechnology in the textile industry have been increasing rapidly. [1][2][3] Recently, several nanomaterials, such as copper, gold, silver, aluminum, titanium dioxide, and zinc oxide (ZnO), are frequently used in textiles as coating or embedding agents. [4][5][6][7] This is mainly due to the fact that conventional methods used to impart different properties to fabrics often do not lead to permanent effects and will lose their function after laundering or wearing.…”

Enhancing the Efficiency of Dye‐Sensitized Solar Cells (DSSCs) by Nanostructured Ag‐doped ZnO Electrodes

“…It is clearly shown that the Zn peaks which are corresponding to Miller indices (100), (002), and (101), are slightly shifted to a higher angle side with increasing Ag doping concentration from 0 % to 20 %. It mainly occurs due to the ionic radii difference of Zn +2 ions (0.074 nm) and Ag + ions (0.126 nm) [40] …”

“…It mainly occurs due to the ionic radii difference of Zn + 2 ions (0.074 nm) and Ag + ions (0.126 nm). [40] This shift implies that Ag + ions have successfully substituted the Zn sites in the ZnO crystal. [41] Energy Dispersive X-ray (EDX) characterization was used to identify the chemical composition of undoped and Ag-doped ZnO nanoparticles (0 %-20 %), as shown in Figures 2 and S3.…”

Recent Progress of Wearable Piezoelectric Nanogenerators

“…In addition, the external fabrics also help ensure a stable operation. Rafique et al built a similar type of textile-based PENG by growing silver-doped ZnO on cotton fabric. When the top electrode was pressed, the Ag-doped ZnO NRs are deformed, which generates piezoelectricity in the growth direction.…”