Tailored nanocomposite energy harvesters with high piezoelectric voltage coefficient through controlled nanowire dispersion

Progress in lead-free piezoelectric nanofiller materials and related composite nanogenerator devices

“…Among the diverse piezoelectric nanogenerators, piezocomposite nanogenerators, which were rstly demonstrated by Park et al in 2012, 194 have highly attracted academic and industrial attentions because of their novel characteristics such as economy, scalability, efficient performance, and mechanically exible properties. [194][195][196][197] They consist of piezoelectric nanoscale ller and polymer matrix, oen with additional mechanical agents. 195 Silk broin can be used as the matrix due to its natural biodegradability, which meets the requirement of biological and eco-friendly electronics.…”

Tailored Uniaxial Alignment of Nanowires Based on Off-Center Spin-Coating for Flexible and Transparent Field-Effect Transistors

“…Over the past few decades, new approaches towards the alignment of nanowires (NWs) have been extensively investigated for use in versatile electrical applications such as field-effect transistors (FETs), energy harvesters, electrodes, and sensors [ 1 , 2 , 3 , 4 , 5 , 6 ]. In contrast to the conventional random geometries, the aligned NWs enable the utilization of their anisotropic properties within the electrical devices.…”

Low‐frequency nanocomposite piezoelectric energy harvester with embedded zinc oxide nanowires

“…Kim et al [36] fabricated an inexpensive and wearable PVDF-TrFE energy harvester to produce electrical energy from human motions. Nafari et al [37] characterized the performance of nanocomposite PEHs made of a mixture of PDMS and PTO nanowires using FE simulations and experimental tests. Another lead-free and flexible nanogenerator film was proposed in the work of Hanani et al [38] where they fabricated such films using a mixture of piezoelectric BCZT nanopowder, polydopamine, and polylactic acid.…”