Luminescence Properties of Y2O3:Tb〔3+〕 Whiskers Fabricated by Chemical Vapor Deposition

• Najafov Hikmat

  Nagaoka University of Technology

• Satoh Yuko

  Nagaoka University of Technology

• Ohshio Shigeo

  Nagaoka University of Technology

• Kato Ariyuki

  Nagaoka University of Technology

• Saitoh Hidetoshi

  Nagaoka University of Technology

書誌事項

タイトル別名

• Luminescence Properties of Y2O3:Tb3+ Whiskers Fabricated by Chemical Vapor Deposition
• Luminescence Properties of Y₂O₃:Tb³⁺Whiskers Fabricated by Chemical Vapor Deposition

抄録

Luminescence properties of highly ⟨100⟩-oriented Y₂O₃:Tb³⁺ whiskers obtained by chemical vapor deposition on Si substrate have been investigated over a wide temperature range for different dopant concentrations. A considerable thermally stimulated increase of the green Tb³⁺ emission intensity was found in the temperature range of 98–433 K under 325 nm laser excitation. At temperatures higher than 433 K, the emission exhibits temperature quenching with the activation energy of ∼0.98 eV. This behavior is discussed on the basis of the results of the time-decay measurements of the emission in the temperature range of 300–773 K. The thermally stimulated intensity increase is attributed to the thermal broadening of the photoluminescence excitation spectrum, whereas the temperature quenching is tentatively ascribed to the thermal activation of electrons from the excited 4f⁷5d configuration to the conduction band. The decay time of the green Tb³⁺ emission exhibits shortening with increasing dopant concentration, which is considered in terms of the energy transfer processes between the Tb³⁺ ions.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 43 (10), 7111-7119, 2004

  The Japan Society of Applied Physics

キーワード

• Y<SUB>2</SUB>O<SUB>3</SUB>
• Tb<SUP>3+</SUP>
• photoluminescence
• multiphonon relaxation
• temperature quenching
• concentration quenching
• decay time
• energy transfer
• whisker
• CVD

詳細情報

• CRID: 1390001206265460352
• NII論文ID: 210000056554
• NII論文ID: 10013745583
• NII論文ID: 130004531431
• NII書誌ID: AA10457675
• DOI: 10.1143/jjap.43.7111
• ISSN: 13474065
• ISSN: 00214922
• NDL書誌ID: 7124604
• Web Site: http://id.ndl.go.jp/bib/7124604
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7124604
• Web Site: http://stacks.iop.org/1347-4065/43/i=10R/a=7111/pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可