Effects of Organic Additive during Thermal Reduction of Platinum Electrodes for Dye-Sensitized Solar Cells

Abstract

We report on a method to prepare Pt electrodes with homogeneously dispersed Pt nanoparticles on fluorine-doped tin oxide substrates by adding an organic additive, hydroxypropyl cellulose (HPC), in the Pt precursor solution for thermal decomposition on the substrates. The Pt electrodes prepared with various amounts of added HPC are characterized electrochemically by cyclovoltammetry and electrochemical impedance spectroscopy. The addition of HPC increases the surface area of the Pt electrode and, hence, the electrocatalytic activity. The overall conversion efficiency of a dye-sensitized solar cell is increased by 12.7% by using such a Pt electrode as a cathode.

Fabrication of an Efficient Light‐Scattering Functionalized Photoanode Using Periodically Aligned ZnO Hemisphere Crystals for Dye‐Sensitized Solar Cells

“…The solution was spin-coated on the FTO glass and subjected to a thermal decomposition at 450 °C for 1 h, yielding a 20 nm thick Pt layer. [37] The size of the active area was ca. 1.66 ± 0.02 cm 2 .…”

Morphological and Optical Characteristics of Zinc Sulfide on Silica-Modified Polyaniline Grown on Glass and Platinum-Coated Substrates

“…In addition, selection of the electrode is also important in the operation of solar cell. Several studies suggested that platinum can be a good electrode due to its excellent catalytic activity which can reduce the voltage loss during solar cell operation, and thus minimizing the energy loss [18,19]. In the present paper, fabrication of hybrid SM-PAni/ZnS nanocomposites grown on glass and Ptcoated substrates is reported.…”