Modeling and experiment of dye-sensitized solar cell with vertically aligned ZnO nanorods through chemical bath deposition

Ruri Agung Wahyuono; Doty Dewi Risanti

doi:10.1117/12.2081054

9 January 2015 Modeling and experiment of dye-sensitized solar cell with vertically aligned ZnO nanorods through chemical bath deposition

Ruri Agung Wahyuono, Doty Dewi Risanti

Author Affiliations +

Proceedings Volume 9444, International Seminar on Photonics, Optics, and Its Applications (ISPhOA 2014); 94440Q (2015) https://doi.org/10.1117/12.2081054
Event: International Seminar on Photonics, Optics, and Applications 2014, 2014, Sanur, Bali, Indonesia

Abstract

A theoretical model based on electron diffusion differential equation and Schottky barrier model was developed to determine the current–voltage characteristics of DSSC. To verify the model DSSC with ZnO nanorods photoelectrode which was chemically bath deposited onto the TCO was fabricated. According to modeling results, increasing of recombination current density J at these interfaces results in a decrease in Schottky barrier height φb and therefore improves the photovoltage under the open-circuit condition. It is found that the open-circuit voltage remains constant when the TCO/ZnO Schottky barrier height was varied in the range of 0.45 – 0.6 eV. This theoretical model consistents with the experimental result in which the fabricated DSSCs can produce conversion efficiency in the range of 0.98 – 1.16%. The trend in photovoltage calculated in the theoretical model basically agrees with the experimental result, although the calculated photocurrent is somewhat over estimated compared to the experimental results. The model presents that the ideality factor for ZnO nanorods, which also contributes to the enhancement of photovoltage, increases in the range of 2.75 – 3.0 as the annealing temperature is increased in the experiment.

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Ruri Agung Wahyuono and Doty Dewi Risanti "Modeling and experiment of dye-sensitized solar cell with vertically aligned ZnO nanorods through chemical bath deposition", Proc. SPIE 9444, International Seminar on Photonics, Optics, and Its Applications (ISPhOA 2014), 94440Q (9 January 2015); https://doi.org/10.1117/12.2081054

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