Temperature dependence of photoluminescence, Raman scattering, and transmittance spectra of anatase Ti1-xFexO2 nanocrystalline films

X. G. Chen; W. W. Li; J. Z. Zhang; Y. W. Li; Z. G. Hu; J. H. Chu

doi:10.1117/12.888287

Temperature dependence of photoluminescence, Raman scattering, and transmittance spectra of anatase Ti_1-xFe_xO₂ nanocrystalline films

X. G. Chen, W. W. Li, J. Z. Zhang, Y. W. Li, Z. G. Hu, J. H. Chu

School of Physics and Electronic Science

East China Normal University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Anatase Ti_1-xFe_xO₂ (x=0, 1%, 2%) nanocrystalline films were prepared on quartz substrates by a facile nonhydrolytic sol-gel route. The structure and optical properties have been studied by X-ray diffraction (XRD), Raman scattering, transmittance spectra and temperature dependent photoluminescence (PL). The B_1g, E_g and (A_1g+B_1g) modes of anatase phase TiO₂ can be observed in Raman spectra. Dielectric functions have been extracted by fitting the transmittance spectra in the photon energy range of 0.5-6.5 eV with Adachi's model. The pure TiO₂ film displays a strong broadening visible luminescence band; however, Fe-doped samples exhibit a very weak luminescence due to the increase of oxygen vacancy concentration in TiO ₂. With the temperature increases, the PL intensity decreases monotonously and there are five emission peaks for the pure sample in low temperatures, which could be attributed to oxygen vacancies, surface states and F⁺ center.

Original language	English
Title of host publication	Seventh International Conference on Thin Film Physics and Applications
DOIs	https://doi.org/10.1117/12.888287
State	Published - 2011
Event	7th International Conference on Thin Film Physics and Applications - Shanghai, China Duration: 24 Sep 2010 → 27 Sep 2010

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7995
ISSN (Print)	0277-786X

Conference

Conference	7th International Conference on Thin Film Physics and Applications
Country/Territory	China
City	Shanghai
Period	24/09/10 → 27/09/10

Keywords

Fe-doped TiO
Raman scattering
Temperature dependent photoluminescence

Access to Document

10.1117/12.888287

Cite this

Chen, X. G., Li, W. W., Zhang, J. Z., Li, Y. W., Hu, Z. G., & Chu, J. H. (2011). Temperature dependence of photoluminescence, Raman scattering, and transmittance spectra of anatase Ti_1-xFe_xO₂ nanocrystalline films. In Seventh International Conference on Thin Film Physics and Applications Article 799511 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7995). https://doi.org/10.1117/12.888287

@inproceedings{02d0b564419e49eea5bf6cab4b544391,

title = "Temperature dependence of photoluminescence, Raman scattering, and transmittance spectra of anatase Ti1-xFexO2 nanocrystalline films",

abstract = "Anatase Ti1-xFexO2 (x=0, 1\%, 2\%) nanocrystalline films were prepared on quartz substrates by a facile nonhydrolytic sol-gel route. The structure and optical properties have been studied by X-ray diffraction (XRD), Raman scattering, transmittance spectra and temperature dependent photoluminescence (PL). The B1g, Eg and (A1g+B1g) modes of anatase phase TiO2 can be observed in Raman spectra. Dielectric functions have been extracted by fitting the transmittance spectra in the photon energy range of 0.5-6.5 eV with Adachi's model. The pure TiO2 film displays a strong broadening visible luminescence band; however, Fe-doped samples exhibit a very weak luminescence due to the increase of oxygen vacancy concentration in TiO 2. With the temperature increases, the PL intensity decreases monotonously and there are five emission peaks for the pure sample in low temperatures, which could be attributed to oxygen vacancies, surface states and F+ center.",

keywords = "Fe-doped TiO, Raman scattering, Temperature dependent photoluminescence",

author = "Chen, \{X. G.\} and Li, \{W. W.\} and Zhang, \{J. Z.\} and Li, \{Y. W.\} and Hu, \{Z. G.\} and Chu, \{J. H.\}",

year = "2011",

doi = "10.1117/12.888287",

language = "英语",

isbn = "9780819485687",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

booktitle = "Seventh International Conference on Thin Film Physics and Applications",

note = "7th International Conference on Thin Film Physics and Applications ; Conference date: 24-09-2010 Through 27-09-2010",

}

Chen, XG, Li, WW, Zhang, JZ, Li, YW, Hu, ZG & Chu, JH 2011, Temperature dependence of photoluminescence, Raman scattering, and transmittance spectra of anatase Ti_1-xFe_xO₂ nanocrystalline films. in Seventh International Conference on Thin Film Physics and Applications., 799511, Proceedings of SPIE - The International Society for Optical Engineering, vol. 7995, 7th International Conference on Thin Film Physics and Applications, Shanghai, China, 24/09/10. https://doi.org/10.1117/12.888287

Temperature dependence of photoluminescence, Raman scattering, and transmittance spectra of anatase Ti_1-xFe_xO₂ nanocrystalline films. / Chen, X. G.; Li, W. W.; Zhang, J. Z. et al.
Seventh International Conference on Thin Film Physics and Applications. 2011. 799511 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7995).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Hu, Z. G.

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N2 - Anatase Ti1-xFexO2 (x=0, 1%, 2%) nanocrystalline films were prepared on quartz substrates by a facile nonhydrolytic sol-gel route. The structure and optical properties have been studied by X-ray diffraction (XRD), Raman scattering, transmittance spectra and temperature dependent photoluminescence (PL). The B1g, Eg and (A1g+B1g) modes of anatase phase TiO2 can be observed in Raman spectra. Dielectric functions have been extracted by fitting the transmittance spectra in the photon energy range of 0.5-6.5 eV with Adachi's model. The pure TiO2 film displays a strong broadening visible luminescence band; however, Fe-doped samples exhibit a very weak luminescence due to the increase of oxygen vacancy concentration in TiO 2. With the temperature increases, the PL intensity decreases monotonously and there are five emission peaks for the pure sample in low temperatures, which could be attributed to oxygen vacancies, surface states and F+ center.

AB - Anatase Ti1-xFexO2 (x=0, 1%, 2%) nanocrystalline films were prepared on quartz substrates by a facile nonhydrolytic sol-gel route. The structure and optical properties have been studied by X-ray diffraction (XRD), Raman scattering, transmittance spectra and temperature dependent photoluminescence (PL). The B1g, Eg and (A1g+B1g) modes of anatase phase TiO2 can be observed in Raman spectra. Dielectric functions have been extracted by fitting the transmittance spectra in the photon energy range of 0.5-6.5 eV with Adachi's model. The pure TiO2 film displays a strong broadening visible luminescence band; however, Fe-doped samples exhibit a very weak luminescence due to the increase of oxygen vacancy concentration in TiO 2. With the temperature increases, the PL intensity decreases monotonously and there are five emission peaks for the pure sample in low temperatures, which could be attributed to oxygen vacancies, surface states and F+ center.

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