Embedding variable micro-capacitors in polydimethylsiloxane for enhancing output power of triboelectric nanogenerator

Realizing the potential of polyethylene oxide as new positive tribo-material: Over 40 W/m2 high power flat surface triboelectric nanogenerators

“…Current efforts for the development of TENG technology mainly focus on the enhancement of the output power via an increase in the surface charge density. To this effect, the recent approaches rely on: (i) judicious selection of triboelectric materials, (ii) modification of tribo-materials, for instance, surface patterning with micro-/nano-structures [16], chemical surface functionalization [17], and nanoparticles-filled or pore-formed polymers [18][19][20], (iii) charge injection [21] or use of polarized piezoelectric nanomaterials [22], and (iv) use of hybrid structures, such as piezoelectric/triboelectric structures [23], solar cell/triboelectric structure [24], and electromagnetic/triboelectric structures [25]. Of all the above mentioned methods, except for the judicious use of materials, the rest of the methods rely on time-consuming, complicated processes or structures, and/or use expensive equipment, and thereby lead to an increase in the cost of the TENGs.…”

Recent development on modification of synthesized barium titanate (BaTiO3) and polymer/BaTiO3 dielectric composites

“…[150] High dielectric polymer composites are ideal materials for the fabrication of embedded capacitors, because they possess three main advantages: (1) they have high dielectric constant and low dielectric loss to meet the capacitor requirements; (2) the composites exhibit excellent process-ability and are molded in various ways at low temperature; (3) polymer composites and PCB materials have good compatibility, which improves the stability of PCB. [151][152][153] ( Figure 20) Figure 20 Schematics of discrete passives and embedded passives [154]…”

Enhancing the Output Performance of Triboelectric Nanogenerator via Grating‐Electrode‐Enabled Surface Plasmon Excitation

“…As an energy harvester, the output characteristic of the TENGs is the key consideration, which involves two main aspects: the surface charge density and the output impedance . Till now, studies have been conducted on the improvement of the surface charge density, such as surface functionalization techniques including micropatterning surface, plasma treatment, or adding chemical functional groups . Especially substantial researches on the TENGs have concentrated on making triboelectric layers into both micro‐ and nanoscale to achieve increased surface areas and roughness .…”

“…As an energy harvester, the output characteristic of the TENGs is the key consideration, which involves two main aspects: the surface charge density [6][7][8] and the output impedance. [22][23][24][25] Especially substantial researches on the TENGs have concentrated on making triboelectric layers into both micro-and nanoscale to achieve increased surface areas and roughness. [22][23][24][25] Especially substantial researches on the TENGs have concentrated on making triboelectric layers into both micro-and nanoscale to achieve increased surface areas and roughness.…”