access icon free Fabrication and characterisation of the dye-sensitised solar cells with the mixture of one-dimension TiO2 nanorods and graphite nanosheets as the mesoporous scafford

One-dimension (1D) TiO2 nanorods (TiO2-N) has been fabricated via electro-spinning method. The composites of 1D TiO2-N and graphite nanosheets, termed as (TiO2-N/G-N), have been obtained by the physical doping method. The structure and properties of TiO2-N and TiO2-N/G-N have been characterised by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Raman spectrum. Dye-sensitised solar cells devices with TiO2 nanoparticles, TiO2-N and TiO2-N/G-N as the mesoporous scaffolds have been developed and investigated, respectively. Device 2 based on TiO2-N scaffolds showed short-circuit current (J sc) of 5.57 mA·cm−1, open-circuit voltage (V OC) of 0.68 V, filling factor of 0.75, and the power conversion efficiency of 2.85%, respectively. Compared with device 2, device 3 based on TiO2-N/G-N exhibited reduced photovoltaic properties.

Inspec keywords: X-ray diffraction; titanium compounds; photovoltaic effects; scanning electron microscopy; Raman spectra; graphite; nanoparticles; semiconductor growth; doping; electrospinning; short-circuit currents; mesoporous materials; nanorods; nanofabrication; dye-sensitised solar cells; semiconductor materials; transmission electron microscopy; nanocomposites

Other keywords: scanning electron microscopy; one-dimension nanorods; physical doping; voltage 0.68 V; electrospinning; X-ray diffraction; transmission electron microscopy; nanoparticles; Raman spectrum; dye-sensitised solar cells; composites; filling factor; TiO2-C; mesoporous scaffolds; short-circuit current; photovoltaic properties; open-circuit voltage; graphite nanosheets; power conversion efficiency

Subjects: Oxide and ferrite semiconductors; Electrical properties of thin films, low-dimensional and nanoscale structures; Photoconducting materials and properties; Infrared and Raman spectra in disordered solids (inc. glasses and polymers); Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials; Structure of powders and porous materials; Composite materials (engineering materials science); Photoconduction and photovoltaic effects; photodielectric effects; Powders and porous materials (engineering materials science); Solar cells and arrays; Low-dimensional structures: growth, structure and nonelectronic properties; Optical properties of thin films, low-dimensional and nanoscale structures; Other methods of nanofabrication; Nanometre-scale semiconductor fabrication technology; Photoelectrochemical conversion

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