Tunable Localized Surface Plasmon-Enabled Broadband Light-Harvesting Enhancement for High-Efficiency Panchromatic Dye-Sensitized Solar Cells

Y 1.86 Eu 0.14 WO 6 phosphors were prepared using a solid-state reaction method. Their optical properties were analysed, and they was mixed with TiO 2 , sintered, and used as a photoelectrode (PE) in dye-sensitized solar cells (DSSCs). The as-prepared photoelectrode was characterized by photoluminescence spectroscopy, diffuse reflectance, electrochemical impedance spectroscopy (EIS) and X-ray diffraction. The photoelectric conversion efficiency of the DSSC with TiO 2 :Y 1.86 Eu 0.14 WO 6 (100:2.5) was 25.8% higher than that of a DSCC using pure TiO 2 as PE. This high efficiency is due to the ability of the luminescent material to convert ultraviolet radiation from the sun to visible radiation, thus improving the solar light harvesting of the DSSC.

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Enhancing Photocurrent Performance Based on Photoanode Thickness and Surface Plasmon Resonance Using Ag-TiO2 Nanocomposites in Dye-Sensitized Solar Cells

Materials ◽

10.3390/ma12132111 ◽

2019 ◽

Vol 12 (13) ◽

pp. 2111 ◽

Cited By ~ 3

Author(s):

Muhammad Quisar Lokman ◽

Suhaidi Shafie ◽

Suraya Shaban ◽

Fauzan Ahmad ◽

Haslina Jaafar ◽

...

Keyword(s):

Solar Cells ◽

Surface Plasmon Resonance ◽

Surface Plasmon ◽

Plasmon Resonance ◽

High Efficiency ◽

Dye Sensitized Solar Cells ◽

Tio2 Powder ◽

Scotch Tape ◽

Dye Sensitized ◽

Sensitized Solar Cells

This study investigated the different thicknesses of TiO2 photoanode films and the effect of surface plasmon resonance (SPR) of Ag-TiO2 nanocomposites on the current-voltage (I–V) performance of dye-sensitized solar cells (DSSC). The TiO2 layer was deposited using the doctor blade technique and the thickness of the TiO2 films was controlled by using a different number of Scotch tape layers. The silver nanoparticles (AgNP) were synthesised using a chemical reduction method and the concentration of sodium citrate as a reducing agent was varied from 4 to 12 mM to study the effect of citrate ion on the size of the nanoparticles. Ag-TiO2 nanopowder was prepared by adding pure anatase TiO2 powder into AgNP colloidal solution. The mixture was left to dry for 24 h to obtain Ag-TiO2 powder for paste preparation. The three-layer Scotch tape, with thickness of 14.38 µm, achieved a high efficiency of 4.14%. This results showed that three layers was the optimal thickness to improve dye loading and to reduce the charge recombination rate. As for the Ag-TiO2 nanocomposites, 10 mM of AgNP, with a mean diameter of 65.23 nm and high efficiency of 6.92%, proved that SPR can enhance the absorption capability of dye and improve the photon-to-electron generation.

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Dye-Sensitized Solar Cells Consisting of 3D-Electrodes—A Review: Aiming at High Efficiency From the View Point of Light Harvesting and Charge Collection

Journal of Solar Energy Engineering ◽

10.1115/1.4001182 ◽

2010 ◽

Vol 132 (2) ◽

Cited By ~ 12

Author(s):

Kenshiro Uzaki ◽

Terumi Nishimura ◽

Jun Usagawa ◽

Shuzi Hayase ◽

Mitsuru Kono ◽

...

Keyword(s):

Solar Cells ◽

High Efficiency ◽

Light Harvesting ◽

Fiber Type ◽

Dye Sensitized Solar Cells ◽

Three Dimensional ◽

Charge Collection ◽

Dye Sensitized ◽

3D Electrodes ◽

Sensitized Solar Cells

Directions to high efficiency dye-sensitized solar cells (DSCs) are reviewed in terms of light harvesting and charge collection. Three dimensional DSCs characterized by a double dye layer electrode, a floating electrode, and a fiber type electrode are proposed. The potentiality of each structure was discussed by using each model cell. Transparent conductive layerless electrodes were the key structures in these cells. Fabrication processes and fundamental performances are reported. Finally, it is concluded that dyes having high photoconversion efficiency in the near IR and IR regions are essential for realizing these tandem and hybrid cells.

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