Extremely strong UV emission of yttrium doped ZnO films derived by Sol-Gel technology

Po-Tsung Hsieh, Chih Ming Wang, Ching Liang Wei

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, yttrium was doped into ZnO gel and was spin-coated on the SiO2/Si substrate. Rapid thermal annealing of the as-prepared ZnO:Y thin films was performed at various temperatures.. The structural and photoluminescence characteristics were discussed. According to the results, the grain size of ZnO:Y thin films after various annealing temperatures is smaller than the ones without yttrium doping. Unlike ZnO thin films, the grains of ZnO:Y thin films are also separated instead of aggregating together since they were all annealed in the chamber atmosphere. The photoluminescence characteristic shows that only UV emission was obtained. However, the intensity of UV emission of ZnO:Y thin film was extremely stronger than ZnO thin film after the same annealing conditions. The intensity is also increased with increasing annealing temperatures. This phenomenon is considered to be caused by the quantum confinement effort for reducing grain size of ZnO:Y thin film.

Original languageEnglish
Title of host publication11th International Conference and Exhibition of the European Ceramic Society 2009
Pages287-290
Number of pages4
Publication statusPublished - 2009 Dec 1
Event11th International Conference and Exhibition of the European Ceramic Society 2009 - Krakow, Poland
Duration: 2009 Jun 212009 Jun 25

Publication series

Name11th International Conference and Exhibition of the European Ceramic Society 2009
Volume1

Other

Other11th International Conference and Exhibition of the European Ceramic Society 2009
CountryPoland
CityKrakow
Period09-06-2109-06-25

Fingerprint

Yttrium
Sol-gels
Thin films
Annealing
Photoluminescence
Quantum confinement
Rapid thermal annealing
Temperature
Gels
Doping (additives)
Substrates

All Science Journal Classification (ASJC) codes

  • Process Chemistry and Technology
  • Mechanics of Materials
  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Surfaces, Coatings and Films

Cite this

Hsieh, P-T., Wang, C. M., & Wei, C. L. (2009). Extremely strong UV emission of yttrium doped ZnO films derived by Sol-Gel technology. In 11th International Conference and Exhibition of the European Ceramic Society 2009 (pp. 287-290). (11th International Conference and Exhibition of the European Ceramic Society 2009; Vol. 1).
Hsieh, Po-Tsung ; Wang, Chih Ming ; Wei, Ching Liang. / Extremely strong UV emission of yttrium doped ZnO films derived by Sol-Gel technology. 11th International Conference and Exhibition of the European Ceramic Society 2009. 2009. pp. 287-290 (11th International Conference and Exhibition of the European Ceramic Society 2009).
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abstract = "In this study, yttrium was doped into ZnO gel and was spin-coated on the SiO2/Si substrate. Rapid thermal annealing of the as-prepared ZnO:Y thin films was performed at various temperatures.. The structural and photoluminescence characteristics were discussed. According to the results, the grain size of ZnO:Y thin films after various annealing temperatures is smaller than the ones without yttrium doping. Unlike ZnO thin films, the grains of ZnO:Y thin films are also separated instead of aggregating together since they were all annealed in the chamber atmosphere. The photoluminescence characteristic shows that only UV emission was obtained. However, the intensity of UV emission of ZnO:Y thin film was extremely stronger than ZnO thin film after the same annealing conditions. The intensity is also increased with increasing annealing temperatures. This phenomenon is considered to be caused by the quantum confinement effort for reducing grain size of ZnO:Y thin film.",
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Hsieh, P-T, Wang, CM & Wei, CL 2009, Extremely strong UV emission of yttrium doped ZnO films derived by Sol-Gel technology. in 11th International Conference and Exhibition of the European Ceramic Society 2009. 11th International Conference and Exhibition of the European Ceramic Society 2009, vol. 1, pp. 287-290, 11th International Conference and Exhibition of the European Ceramic Society 2009, Krakow, Poland, 09-06-21.

Extremely strong UV emission of yttrium doped ZnO films derived by Sol-Gel technology. / Hsieh, Po-Tsung; Wang, Chih Ming; Wei, Ching Liang.

11th International Conference and Exhibition of the European Ceramic Society 2009. 2009. p. 287-290 (11th International Conference and Exhibition of the European Ceramic Society 2009; Vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Hsieh P-T, Wang CM, Wei CL. Extremely strong UV emission of yttrium doped ZnO films derived by Sol-Gel technology. In 11th International Conference and Exhibition of the European Ceramic Society 2009. 2009. p. 287-290. (11th International Conference and Exhibition of the European Ceramic Society 2009).