Dielectric control of porous polydimethylsiloxane elastomers with Au nanoparticles for enhancing the output performance of triboelectric nanogenerators

Abstract

Polydopamine was utilized an adhesive interface for the uniform coating of Au nanoparticles in the pores of polydimethylsiloxane to enhance the output performance of triboelectric nanogenerators.

Porous Polydimethylsiloxane/Au Composites as Solar‐Light Absorbers for Light‐Driven Thermoelectric Applications

“…To demonstrate the scattering-mediated absorption process in polymer-NP composites, we prepared porous PDMS films using the so-called sugar template method, [33] in which commercial sugar powders with different sizes were employed to produce PDMS films with different pore sizes (Detailed Experimental Section can be found in the Supporting Information). As shown in Figure S1 (Supporting Information), the sugar particles have polyhedral structures and a broad size distribution.…”

The characterisation of polydimethylsiloxane containing gold nanoparticles as a function of curing time

“…13 The porous PDMS and porous PDMS_Au NPs were prepared using the sugar-template method. 14,15 The chemical composition of the sugar brick was C 12 H 22 O 11 , its density was 1.59 g/cm 3 , the fusion point was 186 C, and it was soluble in water.…”

In situcontrolled and conformal coating of polydimethylsiloxane foams with silver nanoparticle networks with tunable piezo-resistive properties

“…However, the coating of polymer foams with metal films via electroless deposition has been limited to the preparation of stretchable interconnections and electrodes with applications in flexible and wearable electronics. [15][16][17] On the other hand, the coating of the inner surface of polymer foams with nanoscopic fillers has been leveraged to modify the physio-chemical, [19][20][21][22][23][24][25] mechanoelectrical, 17,[26][27][28][29][30][31][32] and topological [26][27][28] properties of the foams and gain, in turn, novel features. Applications of such nanocomposites include sensing structures, [26][27][28][29][30][31][32][33][34] stretchable electronics, 17,20,35 environmental cleaning, 19,21,[36][37][38] and biomedical devices.…”

“…Ex situ approaches are based on preformation of the nanofillers, i.e. NPs, nanowires (NWs), nanotubes (NTs), and nanosheets (NSs), which are then integrated on the surface of the porous hosting material by dropcasting 26,27,31 or dip coating 8,21,22,24,25,29,32,[42][43][44] methods. These approaches permit fine-tuning of the size and morphology of the nanofillers through wet and vapor phase processes, though they suffer from sophisticated and costly preparation of the nanofillers, limited adhesion of the nanofillers to the polymer surfaces, severe aggregation at high concentrations, and uneven coating of the inner surfaces of the pore network.…”