Electron transport analysis for improvement of solid-sate dye-sensitized solar cells using poly(3,4-ethylenedioxythiophene) as hole conductors

Article Abstract:

The electron transport processes in Ti[O.sub.2] electrodes are analyzed by using stepped light induced transient measurements of photocurrent and voltage (SLIM-PCV). The effective filling of poly(3,4-ethylenedioxythiophene) (PEDOT) in the mesopores of dyed Ti[O.sub.2] layers is important in achieving the respectable conversion efficiency of PEDOT/dye-sensitized solar cells( DSCs) that is comparable with iodide/DSCs.

Analysis, Electron transport, Titanium dioxide, Atomic properties

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Role of electrolytes on charge recombination in dye-sensitized TiO2 solar cell (1): The case of solar cells using the I(super -)/I(sub 3)(super -) redox couple

Article Abstract:

An investigation was conducted on the performance of dye-sensitized solar cells (DCSs) depending on the composition of the electrolyte. Current-voltage characteristics, electron lifetime, and electron diffusion coefficient were measured to clarify the effects of the constituents in the electrolyte on the charge recombination kinetics in the DSCs.

Titanium compounds, Electrolytes

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Origin of enhancement in open-circuit voltage by adding ZnO to nanocrystalline SnO2 in dye-sensitized solar cells

Article Abstract:

The origin of the enhancement of open circuit voltage (Voc) by adding ZnO was investigated. Result showed that the enhancement of Voc is mainly caused by the decrease in the chemical capacitance of the electrode by the difference in the chemical capacitance of ZnO and SnO(sub 2).

Chemical reactions, Zinc oxide, Electrodes

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