Titanium dioxide (TiO2) and zinc oxide (ZnO) nanostructures have been widely used as photo-catalysts due to their low-cost, high surface area, robustness, abundance non-toxicity. In this work, four TiO2 ZnO-based nanostructures, i.e. nanoparticles (TiO2 NPs), nanotubes NTs), ZnO nanowires (ZnO NWs) ZnO@TiO2 core-shell structures, specifically prepared with a fixed thickness of about 1.5 μm, are compared for the solar-driven water splitting reaction, under AM1.5G simulated sunlight. Complete...

Herein, we are reporting a rapid one-pot synthesis of MoS2-decorated laser-induced graphene (MoS2-LIG) by direct writing polyimide foils. By covering the polymer surface with layer MoS2 dispersion before processing, it is possible to obtain an in situ decoration porous network during laser writing. The resulting material three-dimensional arrangement agglomerated and wrinkled flakes decorated nanosheets good electrical properties high area, suitable be employed as electrodes for...

Stretchable electrochemical supercapacitor exploiting laser-induced graphene (LIG) transfer onto elastomeric substrates is reported. Elastomeric energy-storage devices are fabricated using polymeric electrolyte and all-PDMS (all-polydimethylsiloxane) architecture. The symmetric LIG/PDMS can sustain repeated charge–discharge cycles without suffering significant deterioration of specific capacitance even under stretching bending conditions. As a service to our authors readers, this journal...

The air permeability of PDMS membranes is easily tuned acting on their composition. Varying the mixing ratio it possible to strongly influence gas molecules permeation across membrane.

Flexible supercapacitors have emerged as one of the more promising and efficient space-saving energy storage system for portable wearable electronics. Laser-induced graphenization has been recently proposed a powerful scalable method to directly convert polymeric substrate into 3D network few layer graphene high-performance supercapacitor electrode. Unfortunately this outstanding process reported be feasible only thermoplastic polymers, strongly limiting its future developments. Here we show...

In certain polymers the graphenization of carbon atoms can be obtained by laser writing owing to easy absorption long-wavelength radiation, which generates photo-thermal effects. On a polyimide surface this process allows formation nanostructured and porous network known as laser-induced graphene (LIG). Herein we report on effect parameters morphology physical properties LIG nanostructures. We show that scan speed frequency incident radiation affect gas evolution, inducing different...

Laser-induced graphene (LIG) emerged as one of the most promising materials for flexible functional devices. However, attempts to obtain LIG onto elastomeric substrates never succeed, hindering its full exploitation stretchable electronics. Herein, a novel polymeric composite is reported starting material fabrication graphene-based electrodes by direct laser writing. A polyimide (PI) powder dispersed into poly(dimethylsiloxane) (PDMS) matrix achieve an easily processable and substrate,...

In the challenging scenario of anode materials for sodium-ion batteries, TiO2 nanotubes could represent a winning choice in terms cost, scalability preparation procedure, and long-term stability upon reversible operation electrochemical cells. this work, detailed physicochemical, computational, characterization is carried out on synthesized by varying growth time heat treatment, viz. two most significant experimental parameters during preparation. A chemometric approach proposed to obtain...

Herein the concomitant synthesis of a MoS2- and Cu7S4-decorated graphene aerogel is reported. The material fully characterized used as an active to coat carbon fiber electrodes for fabrication fiber-shaped supercapacitor. device provides excellent capacitance values warranting stable performance even under high bending angle conditions. Moreover, photocurable resin selected smart packaging overcome stability problems usually affecting this class devices. It noteworthy that superior...

Abstract Laser‐induced graphene (LIG) is under the spotlight as a promising material for flexible supercapacitors due to its simple processing and flexibility. However, poor conductivity reduced surface area have prompted research improve performance, traditionally introducing pseudocapacitive behavior. Herein an effective yet easy way presented dramatically electric double layer capacitance of LIG electrodes supercapacitor‐related applications without occurrence redox reactions. The...

Abstract Self‐healing ionic conductive hydrogels have shown significant potential in applications like wearable electronics, soft robotics, and prosthetics because of their high strain sensitivity mechanical electrical recovery after damage. Despite the enormous interest these materials, conventional fabrication techniques hamper use advanced devices since only limited geometries can be obtained, preventing proper conformability to complexity human or robotic bodies. Here, a photocurable...

Over the last three decades, dye-sensitized solar cells (DSSCs) have received a lot of attention, reaching record efficiencies under AM 1.5G illumination slightly over 10%. However, these values are lower than other competing photovoltaic systems. The performance DSSCs has to be further enhanced in order substantial influence and application potential field photovoltaics. Herein we propose new intriguing strategy take advantage two concepts well known photovoltaics, such as tandem...

With the purpose of achieving stable dye-sensitized solar cells (DSSCs) with high efficiency, a new type soft matter electrolyte is tested in which specific amounts nanosized silica particles are finely dispersed short-chained polyethylene glycol dimethylether encompassing an iodide/triiodide redox mediator. This results solid-liquid composite having synergistic electrical and favorable mechanical properties. The combination interfacial effects particle network formation promotes enhanced...

Silver-coated porous silicon and polydimethylsiloxane (PDMS) are systematically analyzed as substrates for surface-enhanced Raman scattering (SERS). They were selected representative metal–dielectric nanostructures characterized by different morphology substrate dielectric constant which is reflected in the electromagnetic near-field intensity spectra. The study conducted using 4-mercaptobenzoic acid probe molecule with aim to compare efficiency homogeneity of signal on substrates. A larger...

Sponge-like nanostructured ZnO layers were successfully employed as photoanodes for the fabrication of highly efficient dye-sensitized solar cells. The sponge-like obtained by room temperature radio-frequency magnetron sputtering deposition metallic zinc, followed thermal oxidation treatment in an ambient atmosphere. porous films show a 3D branched nanomorphology, with feature similar to natural coral. morphological and optical properties these studied through field emission scanning...

In this paper, a methodology for the streamlining of sensitization procedure flowerlike ZnO nanostructures dye-sensitized solar cells (DSCs) is reported. The surface with ruthenium-based complexes particularly critical process, since one has to minimize dissolution Zn atoms by protons released from dye molecules, leading formation Zn(2+)/dye complexes. fine-tuning experimental parameters, such as loading time, concentration, and pH sensitizing solution, performed through multivariate...