Optical and structural properties of WO3 as a function of the annealing temperature

J. Diaz-Reyes; J. E. Flores-Mena; J. M. Gutierrez-Arias; M. M. Morin-Castillo; H. Azucena-Coyotecatl; M. Galván; P. Rodríguez-Fragoso; A. Mendez-López

Optical and structural properties of WO₃ as a function of the annealing temperature

J. Diaz-Reyes, J. E. Flores-Mena, J. M. Gutierrez-Arias, M. M. Morin-Castillo, H. Azucena-Coyotecatl, M. Galván, P. Rodríguez-Fragoso, A. Mendez-López

Centro de Investigación en Biotecnología Aplicada (CIBA), Unidad Tlaxcala

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

15 Scopus citations

Abstract

This work presents a study of effect of annealing temperature on optical and structural properties of WO₃ that has been deposited by hot-filament metal oxide deposition (HFMOD). X-ray diffraction shows that the as-deposited WO₃ films present mainly monoclinic crystalline phase. The Raman spectrum shows four intense peaks that are typical Raman peaks of crystalline WO₃ (m-phase) that corresponds to the stretching vibrations of the bridging oxygen that enhance and increase their intensity with the annealing temperature. gap can be varied from 2.92 to 3.15 eV by annealing WO₃ from O to 500^°C. The photoluminescence response of the asdeposited film presents two radiative transitions centered at 2.04 and 2.65 eV that are associated to oxygen vacancies.

Original language	English
Title of host publication	Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10
Pages	99-104
Number of pages	6
State	Published - 2010
Event	3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10 - Faro, Portugal Duration: 3 Nov 2010 → 5 Nov 2010

Publication series

Name	Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10

Conference

Conference	3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10
Country/Territory	Portugal
City	Faro
Period	3/11/10 → 5/11/10

Keywords

Compound semiconductors
HFMOD
Novel materials and technological advances for electrochromics
Raman spectroscopy
Semiconductors growth
Transmittance spectroscopy
WO semiconductors
X-ray
XPS

Cite this

Diaz-Reyes, J., Flores-Mena, J. E., Gutierrez-Arias, J. M., Morin-Castillo, M. M., Azucena-Coyotecatl, H., Galván, M., Rodríguez-Fragoso, P., & Mendez-López, A. (2010). Optical and structural properties of WO₃ as a function of the annealing temperature. In Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10 (pp. 99-104). (Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10).

Diaz-Reyes, J. ; Flores-Mena, J. E. ; Gutierrez-Arias, J. M. et al. / Optical and structural properties of WO₃ as a function of the annealing temperature. Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10. 2010. pp. 99-104 (Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10).

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title = "Optical and structural properties of WO3 as a function of the annealing temperature",

abstract = "This work presents a study of effect of annealing temperature on optical and structural properties of WO3 that has been deposited by hot-filament metal oxide deposition (HFMOD). X-ray diffraction shows that the as-deposited WO3 films present mainly monoclinic crystalline phase. The Raman spectrum shows four intense peaks that are typical Raman peaks of crystalline WO3 (m-phase) that corresponds to the stretching vibrations of the bridging oxygen that enhance and increase their intensity with the annealing temperature. gap can be varied from 2.92 to 3.15 eV by annealing WO3 from O to 500°C. The photoluminescence response of the asdeposited film presents two radiative transitions centered at 2.04 and 2.65 eV that are associated to oxygen vacancies.",

keywords = "Compound semiconductors, HFMOD, Novel materials and technological advances for electrochromics, Raman spectroscopy, Semiconductors growth, Transmittance spectroscopy, WO semiconductors, X-ray, XPS",

author = "J. Diaz-Reyes and Flores-Mena, {J. E.} and Gutierrez-Arias, {J. M.} and Morin-Castillo, {M. M.} and H. Azucena-Coyotecatl and M. Galv{\'a}n and P. Rodr{\'i}guez-Fragoso and A. Mendez-L{\'o}pez",

year = "2010",

language = "Ingl{\'e}s",

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series = "Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10",

pages = "99--104",

booktitle = "Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10",

note = "3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10 ; Conference date: 03-11-2010 Through 05-11-2010",

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Diaz-Reyes, J, Flores-Mena, JE, Gutierrez-Arias, JM, Morin-Castillo, MM, Azucena-Coyotecatl, H, Galván, M, Rodríguez-Fragoso, P & Mendez-López, A 2010, Optical and structural properties of WO₃ as a function of the annealing temperature. in Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10. Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10, pp. 99-104, 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10, Faro, Portugal, 3/11/10.

Optical and structural properties of WO₃ as a function of the annealing temperature. / Diaz-Reyes, J.; Flores-Mena, J. E.; Gutierrez-Arias, J. M. et al.
Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10. 2010. p. 99-104 (Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10).

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

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T1 - Optical and structural properties of WO3 as a function of the annealing temperature

AU - Diaz-Reyes, J.

AU - Flores-Mena, J. E.

AU - Gutierrez-Arias, J. M.

AU - Morin-Castillo, M. M.

AU - Azucena-Coyotecatl, H.

AU - Galván, M.

AU - Rodríguez-Fragoso, P.

AU - Mendez-López, A.

PY - 2010

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N2 - This work presents a study of effect of annealing temperature on optical and structural properties of WO3 that has been deposited by hot-filament metal oxide deposition (HFMOD). X-ray diffraction shows that the as-deposited WO3 films present mainly monoclinic crystalline phase. The Raman spectrum shows four intense peaks that are typical Raman peaks of crystalline WO3 (m-phase) that corresponds to the stretching vibrations of the bridging oxygen that enhance and increase their intensity with the annealing temperature. gap can be varied from 2.92 to 3.15 eV by annealing WO3 from O to 500°C. The photoluminescence response of the asdeposited film presents two radiative transitions centered at 2.04 and 2.65 eV that are associated to oxygen vacancies.

AB - This work presents a study of effect of annealing temperature on optical and structural properties of WO3 that has been deposited by hot-filament metal oxide deposition (HFMOD). X-ray diffraction shows that the as-deposited WO3 films present mainly monoclinic crystalline phase. The Raman spectrum shows four intense peaks that are typical Raman peaks of crystalline WO3 (m-phase) that corresponds to the stretching vibrations of the bridging oxygen that enhance and increase their intensity with the annealing temperature. gap can be varied from 2.92 to 3.15 eV by annealing WO3 from O to 500°C. The photoluminescence response of the asdeposited film presents two radiative transitions centered at 2.04 and 2.65 eV that are associated to oxygen vacancies.

KW - Compound semiconductors

KW - HFMOD

KW - Novel materials and technological advances for electrochromics

KW - Raman spectroscopy

KW - Semiconductors growth

KW - Transmittance spectroscopy

KW - WO semiconductors

KW - X-ray

KW - XPS

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M3 - Contribución a la conferencia

AN - SCOPUS:79960120934

SN - 9789604742486

T3 - Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10

SP - 99

EP - 104

BT - Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10

T2 - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10

Y2 - 3 November 2010 through 5 November 2010

ER -

Diaz-Reyes J, Flores-Mena JE, Gutierrez-Arias JM, Morin-Castillo MM, Azucena-Coyotecatl H, Galván M et al. Optical and structural properties of WO₃ as a function of the annealing temperature. In Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10. 2010. p. 99-104. (Advances in Sensors, Signals and Materials - 3rd WSEAS International Conference on Sensors and Signals, SENSIG'10, 3rd WSEAS International Conference on Materials Science, MATERIALS'10).