Effects of dye adsorption on the electron transport properties in ZnO-nanowire dye-sensitized solar cells

Jih Jen Wu; Guan Ren Chen; Hung Hsien Yang; Chen Hao Ku; Jr Yuan Lai

doi:10.1063/1.2742639

Effects of dye adsorption on the electron transport properties in ZnO-nanowire dye-sensitized solar cells

Jih Jen Wu, Guan Ren Chen, Hung Hsien Yang, Chen Hao Ku, Jr Yuan Lai

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Abstract

Mercurochrome and N3 dyes are employed to be the sensitizers in the ZnO-nanowire (NW) dye-sensitized solar cells (DSSCs). A lower fill factor is obtained in the N3-sensitized cell which results in comparable efficiencies in both ZnO-NW DSSCs although the N3 molecules possess a wider absorptive range for light harvesting. Electrochemical impedance spectroscopy and open-circuit photovoltage decay measurements are employed to investigate the electron transport properties in both ZnO-NW DSSCs. The results indicate that more abundant electron interfacial recombination occurs in the N3-sensitized ZnO-NW DSSC due to the higher surface trap density in the ZnO-NW photoanode after N3 dye adsorption.

Original language	English
Article number	213109
Journal	Applied Physics Letters
Volume	90
Issue number	21
DOIs	https://doi.org/10.1063/1.2742639
Publication status	Published - 2007

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2742639

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title = "Effects of dye adsorption on the electron transport properties in ZnO-nanowire dye-sensitized solar cells",

abstract = "Mercurochrome and N3 dyes are employed to be the sensitizers in the ZnO-nanowire (NW) dye-sensitized solar cells (DSSCs). A lower fill factor is obtained in the N3-sensitized cell which results in comparable efficiencies in both ZnO-NW DSSCs although the N3 molecules possess a wider absorptive range for light harvesting. Electrochemical impedance spectroscopy and open-circuit photovoltage decay measurements are employed to investigate the electron transport properties in both ZnO-NW DSSCs. The results indicate that more abundant electron interfacial recombination occurs in the N3-sensitized ZnO-NW DSSC due to the higher surface trap density in the ZnO-NW photoanode after N3 dye adsorption.",

author = "Wu, {Jih Jen} and Chen, {Guan Ren} and Yang, {Hung Hsien} and Ku, {Chen Hao} and Lai, {Jr Yuan}",

note = "Funding Information: This work was sponsored by the National Science Council of Taiwan under Contract No. NSC 95-2221-E006-29.",

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doi = "10.1063/1.2742639",

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T1 - Effects of dye adsorption on the electron transport properties in ZnO-nanowire dye-sensitized solar cells

AU - Wu, Jih Jen

AU - Chen, Guan Ren

AU - Yang, Hung Hsien

AU - Ku, Chen Hao

AU - Lai, Jr Yuan

N1 - Funding Information: This work was sponsored by the National Science Council of Taiwan under Contract No. NSC 95-2221-E006-29.

PY - 2007

Y1 - 2007

N2 - Mercurochrome and N3 dyes are employed to be the sensitizers in the ZnO-nanowire (NW) dye-sensitized solar cells (DSSCs). A lower fill factor is obtained in the N3-sensitized cell which results in comparable efficiencies in both ZnO-NW DSSCs although the N3 molecules possess a wider absorptive range for light harvesting. Electrochemical impedance spectroscopy and open-circuit photovoltage decay measurements are employed to investigate the electron transport properties in both ZnO-NW DSSCs. The results indicate that more abundant electron interfacial recombination occurs in the N3-sensitized ZnO-NW DSSC due to the higher surface trap density in the ZnO-NW photoanode after N3 dye adsorption.

AB - Mercurochrome and N3 dyes are employed to be the sensitizers in the ZnO-nanowire (NW) dye-sensitized solar cells (DSSCs). A lower fill factor is obtained in the N3-sensitized cell which results in comparable efficiencies in both ZnO-NW DSSCs although the N3 molecules possess a wider absorptive range for light harvesting. Electrochemical impedance spectroscopy and open-circuit photovoltage decay measurements are employed to investigate the electron transport properties in both ZnO-NW DSSCs. The results indicate that more abundant electron interfacial recombination occurs in the N3-sensitized ZnO-NW DSSC due to the higher surface trap density in the ZnO-NW photoanode after N3 dye adsorption.

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Effects of dye adsorption on the electron transport properties in ZnO-nanowire dye-sensitized solar cells

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