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Preparation of an inorganic thin film electroluminescent devices using gallium oxide phosphor

Research Project

Project/Area Number 13650047
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied optics/Quantum optical engineering
Research InstitutionKanazawa Institute of Technology

Principal Investigator

MINAMI Tadatsugu  Kanazawa Institute of Technology, Electrical Engineering, Professor, 工学部, 教授 (70113032)

Co-Investigator(Kenkyū-buntansha) MIYATA Toshihiro  Kanazawa Institute of Technology, Electrical Engineering, Associate Professor, 工学部, 助教授 (30257448)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 2002: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2001: ¥2,200,000 (Direct Cost: ¥2,200,000)
Keywordsthin film / EL / oxide phosphor / ceramic / Ga_2O_3 / sol-gel / Ga_2O_3蛍光体 / ゾル・ゲル法 / 薄膜EL素子 / BaTiO_3セラミック
Research Abstract

High luminance Ga_2O_3 : Mn TFEL devices were fabricated by sol-gel process which eliminate the need for vacuum processes. The sol-gel process also eliminates the need for a heat treatment with a rapid temperature rise. The Ga_2O_3 : Mn thin-film emitting layer was prepared using sol-gel process with gallium acethylacetonate as the Ga source. It should be noted that the highest luminance was obtained with a Ga_2O_3 : Mn TFEL device fabricated by the sol-gel process : luminance of 1271 and 401 cd/m^2 in a device driven at 1kHz and 60 Hz, respectively. In addition, multicolor emitting TFEL devices using Ga_2O_3 : Mn, Cr phosphor thin films could be prepared by chemical deposition using the sol-gel process. A high luminance above 100cd/m^2 was obtained in TFEL devices using Ga_2O_3 : Mn, Cr thin films co-doped with a Cr content up to 2 at.% and Mn content of 0.3 at.% and driven at 1kHz. The emission color from these Ga_2O_3 : Mn, Cr TFEL devices changed from green to red as the co-doped Cr content was varied from 0 to 10 at.%. The emission color changed from green to red as the applied voltage was increased. Thus, this inexpensive method of fabricating Ga_2O_3 : Mn and Ga_2O_3 : Mn, Cr oxide phosphor TFEL devices by a sol-gel process using gallium acethylacetonate, manganese chloride and chromium acethylacetonate is very promising for TFEL displays and lamps.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] T.Minami: "Oxide Phosphors for Electroluminescent Devices"Proc. 11th International Workshop on Inorganic and Organic Electroluminescence & 2002 International Conmerence on the Science and Technology of Emissive Displays and Lighting. 219-224 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T.Minami, Y.Kobayashi, T.Miyata, S.Suzuki: "Mn-activated yttria-based multicomponent oxide phosphors for thin film EL devices"PROCEEDINGS OF SPIE. 4918. 242-252 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T.Miyata, M.Yamazaki, S.Suzuki, T.Minami: "New High-Luminamce TFEL Devices Using Zn(Ga_<1-x>Alx)_2O_4 : Mn Phosphor Thin Films"Proc. of the The 22nd International Display Research Conference. 357-360 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T.Miyata, T.Utsubo, S.Suzuki, T.Minami: "High-luminance TFEL devices using Ga_2O_3 : Mn phosphor thin films prepared by a spray coating method"Proc. 11th International Workshop on Inorganic and Organic Electroluminescence & 2002 International Conmerence on the Science and Technology of Emissive Displays and Lighting. 219-224 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T.Minami, M.Yamazaki, Y.Kobayashi, T.Miyata: "High-Luminance Electroluminescence from Y_2O_3 : Mn Phosphor Thin Films prepared by Various Deposition Methods"Proceedings of The 7^<th> Asian Symposium on Information Display. 289-292 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T. Minami: "Oxide Phosphors for Electroluminescent Devices"Proc. 11th International Workshop on Inorganic and Organic Electroluminescence & 2002 International Conference on the Science and Technology of Emissive Displays and Lighting. 219 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T. Minami, Y. Kobayashi, T. Miyata arid S. Suzuki: "Mn-activated yttria-based multicomponent oxide phosphors for thin film EL devices"PROCEEDINGS OF SPIE. 4918. 242 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T. Miyata, M. Yamazaki, S. Suzuki and T. Minami: "New High-Luminamce TEEL Devices Using Zn(Ca_1-xAlx)_2O_4 : Mn Phosphor Thin Films"Proc. Of the The 22nd International Display Research Conference. 357 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T. Miyata, T. Utsubo, S. Suzuki and T. Minami: "High-luminance TFEL devices using Ga_2O_3 : Mn phosphor thin films prepared by a spray coating method"Proc. 11th International Workshop on Inorganic and Organic Electroluminescence & 2002 International Conference on the Science and Technology of Emissive Displays and Lighting. 219 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T. Minami, M. Yamazaki, Y. Kobayashi and T. Miyata: "High-Luminance Electroluminescence from Y_2O_3 : Mn Phosphor Thin Films prepared by Various Deposition Methods."Proceedings of The 7th Asian Symposium on Information Display. 289 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T.Minami: "Oxide Phosphors for Electroluminescent Devices"Proc. 11th International Workshop on Inorganic and Organic Electroluminescence & 2002 International Conmerence on the Science and Technology of Emissive Displays and Lighting. 219-224 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Minami, Y.Kobayashi, T.Miyata, S.Suzuki: "Mn-activated yttria-based multicomponent oxide phosphors for thin film EL devices"PROCEEDINGS OF SPIE. 4918. 242-252 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Miyata, M.Yamazaki, S.Suzuki, T.Minami: "New High-Luminamce TFEL Devices Using Zn(Ga_<1-x>Al_x)_2O_4:Mn Phosphor Thin Films"Proc. of the The 22nd International Display Research Conference. 357-360 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Miyata, T.Utsubo, S.Suzuki, T.Minami: "High-luminance TFEL devices using Ga_2O_3:Mn phosphor thin films prepared by a spray coating method"Proc. 11th International Workshop on Inorganic and Organic Electroluminescence & 2002 International Conmerence on the Science and Technology of Emissive Displays and Lighting. 219-224 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Minami, M.Yamazaki, Y.Kobayashi, T.Miyata: "High-Luminance Electroluminescence from Y_2O_3:Mn Phosphor Thin Films prepared by Various Deposition Methods"Proceedings of The 7^<th> Asian Symposium on Information Display. 289-292 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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