DOI: 10.1246/bcsj.52.1559. Effect of Etching on Intrinsic and Dye-sensitized Photocurrents in Zinc Oxide Electrodes

Effect of Etching on Intrinsic and Dye-sensitized Photocurrents in Zinc Oxide Electrodes

10.1246/bcsj.52.1559

Crossref journal-article

Oxford University Press (OUP)

Bulletin of the Chemical Society of Japan (286)

Abstract

Abstract The photoelectrochemical behavior of sintered zinc oxide electrodes was studied. The intrinsic photocurrent, generated by ultraviolet illumination of the zinc oxide electrode, significantly diminished by grinding the electrode surface with an abrasive, and was restored by etching in 2 M(M= mol dm3)HCl for ca. 120 s. The dye-sensitized photocurrent caused by rose bengal was also lowered by grinding, but the effect was not as large as in the case of the intrinsic photocurrent, and the photocurrent was restored in a much shorter time of etching. The dye-sensitized photocurrent for an insufficiently etched electrode was enhanced by addition of a reducing agent, e.g., hydroquinone or allylthiourea. However, no enhancement was observed for a well etched electrode. The results, together with the luminescence and reflection spectra of zinc oxide, were discussed by means of models for the semiconductor electronic bands.

Bibliography

Matsumura, M., Nomura, Y., & Tsubomura, H. (1979). Effect of Etching on Intrinsic and Dye-sensitized Photocurrents in Zinc Oxide Electrodes. Bulletin of the Chemical Society of Japan, 52(6), 1559â1562.

Authors 3

Michio Matsumura (first)
Yoichi Nomura (additional)
Hiroshi Tsubomura (additional)

References 18 Referenced 18

Dates

Type	When
Created	19 years, 1 month ago (July 19, 2006, 11:14 p.m.)
Deposited	1 year, 7 months ago (Jan. 17, 2024, 9:51 a.m.)
Indexed	1 year, 7 months ago (Jan. 17, 2024, 7:02 p.m.)
Issued	46 years, 3 months ago (June 1, 1979)
Published	46 years, 3 months ago (June 1, 1979)
Published Online	19 years, 4 months ago (April 19, 2006)
Published Print	46 years, 3 months ago (June 1, 1979)

Funders 0

None

BibTeX

@article{Matsumura_1979, title={Effect of Etching on Intrinsic and Dye-sensitized Photocurrents in Zinc Oxide Electrodes}, volume={52}, ISSN={1348-0634}, url={http://dx.doi.org/10.1246/bcsj.52.1559}, DOI={10.1246/bcsj.52.1559}, number={6}, journal={Bulletin of the Chemical Society of Japan}, publisher={Oxford University Press (OUP)}, author={Matsumura, Michio and Nomura, Yoichi and Tsubomura, Hiroshi}, year={1979}, month=jun, pages={1559–1562} }

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