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  • Enhanced conversion efficiency in dye-sensitized solar cells based on bilayered nano-composite photoanode film consisting of TiO2 nanoparticles and nanofibers.

Enhanced conversion efficiency in dye-sensitized solar cells based on bilayered nano-composite photoanode film consisting of TiO2 nanoparticles and nanofibers.

Journal of nanoscience and nanotechnology (2014-04-18)
P F Du, L X Song, J Xiong
ABSTRACT

Novel TiO2 nanoparticles/nanofibers (NPs/NFs) bilayered nano-composite photoanode film for dye-sensitized solar cells (DSSCs) was fabricated through the combination of spin-coating and electrospinning. The NPs and NFs layers have complementary roles. The underlaid spin-coated NPs layer provides the photoanode film with higher specific surface area for dye adsorption and improved adhesion to conductive glass substrate. The overlaid electrospun NFs layer endows the photoanode film with better dye-loading and light-harvesting capabilities due to its porous meshwork structure. And the NFs layer also offers larger pore volume, which can facilitate the electrolyte diffusion and the activity regeneration of dye sensitizers. As a result, the electron transport is accelerated while the charge recombination is suppressed. Ascribing to the synergic effect of the NPs and NFs layers, the TiO2 NPs/NFs-based DSSCs achieve a conversion efficiency of 4.46%, which is nearly 14% higher than that of the pure TiO2 NPs-based ones.

MATERIALS
Product Number
Brand
Product Description

Titanium, wire reel, 0.5m, diameter 1.0mm, annealed, 99.6+%
Titanium, tube, 500mm, outside diameter 0.51mm, inside diameter 0.35mm, wall thickness 0.08mm, annealed, 99.6+%
Titanium, tube, 500mm, outside diameter 3.0mm, inside diameter 1.5mm, wall thickness 0.75mm, annealed, 99.6+%
Titanium, tube, 500mm, outside diameter 0.81mm, inside diameter 0.61mm, wall thickness 0.1mm, as drawn, 99.6+%
Titanium, wire reel, 25m, diameter 1.0mm, as drawn, 99.6+%
Titanium, wire reel, 1m, diameter 0.25mm, as drawn, 99.99+%
Titanium, wire reel, 1m, diameter 0.5mm, as drawn, 99.6+%
Titanium, wire reel, 10m, diameter 0.125mm, annealed, 99.6+%
Titanium, wire reel, 20m, diameter 0.125mm, annealed, 99.6+%
Titanium, wire reel, 10m, diameter 1.5mm, as drawn, 99.6+%
Titanium, wire reel, 200m, diameter 0.20mm, annealed, 99.6+%
Titanium, wire reel, 500m, diameter 0.20mm, annealed, 99.6+%
Titanium, wire reel, 5m, diameter 0.25mm, as drawn, 99.99+%
Titanium, wire reel, 25m, diameter 0.25mm, annealed, 99.6+%
Titanium, wire reel, 50m, diameter 0.75mm, as drawn, 99.6+%
Titanium, rod, 1000mm, diameter 3.0mm, annealed, 99.6+%
Titanium, mesh, 100x100mm, nominal aperture 0.19mm, wire diameter 0.23mm, 60x60 wires/inch, open area 20%, twill weave
Titanium, rod, 100mm, diameter 2mm, annealed, 99.6+%
Titanium, microfoil, disks, 25mm, thinness 0.5μm, specific density 225.4μg/cm2, permanent mylar 3.5μm support, 99.6+%
Titanium, rod, 100mm, diameter 9.5mm, annealed, 99.99+%
Titanium, rod, 100mm, diameter 2mm, as drawn, 99.99+%
Titanium, rod, 10mm, diameter 50mm, 99.99+%
Titanium, rod, 200mm, diameter 4mm, annealed, 99.6+%
Titanium, tube, 200mm, outside diameter 4.25mm, inside diameter 3.75mm, wall thickness 0.25mm, annealed, 99.6+%
Titanium, rod, 25mm, diameter 16mm, as drawn, 99.99+%
Titanium, tube, 200mm, outside diameter 10.3mm, inside diameter 8.7mm, wall thickness 0.8mm, annealed, 99.6+%
Titanium, tube, 1000mm, outside diameter 1.6mm, inside diameter 1.2mm, wall thickness 0.2mm, hard, 99.6+%
Titanium, tube, 1000mm, outside diameter 6.35mm, inside diameter 5.53mm, wall thickness 0.41mm, annealed, 99.6+%
Titanium, microfoil, disks, 10mm, thinness 0.1μm, specific density 42.8μg/cm2, permanent mylar 3.5μm support, 99.6+%
Titanium, rod, 1000mm, diameter 1.5mm, annealed, 99.6+%