In this report, we show for the first time that SnO2 nanowire based dye sensitized solar cells exhibit an open circuit voltage of 560mV, which is 200mV higher than that using SnO2 nanoparticle based cells. This is attributed to the more negative flat band potential of nanowires compared to the nanoparticles as determined by open circuit photo voltage measurements made at high light intensities....

Owing to its excellent semiconducting and photoelectronic properties, TiO2 has recently attracted a great deal of interest for a large variety of applications. Examples include the use of TiO2 nanoparticles/films as photocatalysts for environment protection, photoelectron mediators for sensors, photosensitizers in light-emitting devices, and solar cells. With the recent development in nanoscien...

ont matter & 2012 n.2012.02.009 thors. : wei-mingdeng@f .edu (G. Cao). Abstract Wulff-shaped and nanorod-like nanoporous mesocrystals constructed from ultrathin rutile TiO2 nanowires were successfully fabricated for the first time in the presence of the surfactant sodium dodecyl benzene sulfonate (SDBS). SDBS played a key role in the homoepitaxial selfassembly process, in which titanate nanowir...

One-dimensional heterostructure nanoarrays are efficiently promising as high performance electrodes for photo electrochemical (PEC) water splitting applications, wherein it is highly desirable for the electrode to have a broad light absorption, efficient charge separation and redox properties as well as defect free surface with high area suitable for fast interfacial charge transfer. We present...

We demonstrate high-performance perovskite solar cells with excellent electron transport properties using a one-dimensional (1D) electron transport layer (ETL). The 1D array-based ETL is comprised of 1D SnO2 nanowires (NWs) array grown on a F:SnO2 transparent conducting oxide substrate and rutile TiO2 nanoshells epitaxially grown on the surface of the 1D SnO2 NWs. The optimized devices show mor...

A hierarchical mesoporous TiO2 nanowire bundles (HM-TiO2-NB) superstructure with amorphous surface and straight nanochannels has been designed and synthesized through a templating method at a low temperature under acidic and wet conditions. The obtained HM-TiO2-NB superstructure demonstrates high reversible capacity, excellent cycling performance, and superior rate capability. Most importantly,...

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A 3D Pt/TiO2 architecture assembled from 1D nanowires has been designed and successfully prepared by an environmentally-friendly one-pot solvothermal process. The formation mechanism has been investigated and the unique architecture exhibits an excellent photocatalytic hydrogen production rate as high as 13.33 mmol h(-1) g(-1), the corresponding apparent quantum efficiency reaches 34%.

A facile solution-based technique was developed to grow vertically aligned TiO2 nanowires with predominantly anatase phase on arbitrary substrates of stainless steel, glass, silicon wafer and carbon cloth at the low temperature of 80 °C and in an open atmosphere.

Growth mechanism of chemically-driven RuO2 nanowires is explored and used to fabricate three-dimensional RuO2 branched Au-TiO2 nanowire electrodes for the photostable solar water oxidation. For the real time structural evolution during the nanowire growth, the amorphous RuO2 precursors (Ru(OH)3 · H2O) are heated at 180 (°)C, producing the RuO2 nanoparticles with the tetragonal crystallographic ...