DOI: 10.1063/1.1493647. Band gap narrowing of titanium dioxide by sulfur doping

Band gap narrowing of titanium dioxide by sulfur doping

10.1063/1.1493647

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

Titanium dioxide (TiO2) doped with sulfur (S) was synthesized by oxidation annealing of titanium disulfide (TiS2). According to the x-ray diffraction patterns, TiS2 turned into anatase TiO2 when annealed at 600 °C. The residual S atoms occupied O-atom sites in TiO2 to form Ti–S bonds. The S doping caused the absorption edge of TiO2 to be shifted into the lower-energy region. Based on the theoretical analyses using ab initio band calculations, mixing of the S 3p states with the valence band was found to contribute to the band gap narrowing.

Bibliography

Umebayashi, T., Yamaki, T., Itoh, H., & Asai, K. (2002). Band gap narrowing of titanium dioxide by sulfur doping. Applied Physics Letters, 81(3), 454â456.

Authors 4

T. Umebayashi (first)
T. Yamaki (additional)
H. Itoh (additional)
K. Asai (additional)

References 27 Referenced 1,314

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Dates

Type	When
Created	23 years ago (July 28, 2002, 6:05 p.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 5:40 p.m.)
Indexed	1 week, 5 days ago (Aug. 12, 2025, 6:03 p.m.)
Issued	23 years, 1 month ago (July 15, 2002)
Published	23 years, 1 month ago (July 15, 2002)
Published Print	23 years, 1 month ago (July 15, 2002)

Funders 0

None

BibTeX

@article{Umebayashi_2002, title={Band gap narrowing of titanium dioxide by sulfur doping}, volume={81}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1493647}, DOI={10.1063/1.1493647}, number={3}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Umebayashi, T. and Yamaki, T. and Itoh, H. and Asai, K.}, year={2002}, month=jul, pages={454–456} }

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