JP4080518B2 - 電界発光素子、発光装置、及び電気器具 - Google Patents
電界発光素子、発光装置、及び電気器具 Download PDFInfo
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- JP4080518B2 JP4080518B2 JP2007002093A JP2007002093A JP4080518B2 JP 4080518 B2 JP4080518 B2 JP 4080518B2 JP 2007002093 A JP2007002093 A JP 2007002093A JP 2007002093 A JP2007002093 A JP 2007002093A JP 4080518 B2 JP4080518 B2 JP 4080518B2
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- 239000004033 plastic Substances 0.000 description 1
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- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
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- 239000002356 single layer Substances 0.000 description 1
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- 229910052712 strontium Inorganic materials 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- OYQCBJZGELKKPM-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O-2].[Zn+2].[O-2].[In+3] OYQCBJZGELKKPM-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- GWDUZCIBPDVBJM-UHFFFAOYSA-L zinc;2-(2-hydroxyphenyl)-3h-1,3-benzothiazole-2-carboxylate Chemical compound [Zn+2].OC1=CC=CC=C1C1(C([O-])=O)SC2=CC=CC=C2N1.OC1=CC=CC=C1C1(C([O-])=O)SC2=CC=CC=C2N1 GWDUZCIBPDVBJM-UHFFFAOYSA-L 0.000 description 1
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Images
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- Electroluminescent Light Sources (AREA)
- Heterocyclic Compounds Containing Sulfur Atoms (AREA)
- Pyridine Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
井上晴夫、高木克彦、佐々木政子、朴鐘震、「基礎化学コース 光化学I」(丸善株式会社)、p.106−110)
C. W. Tang and S. A. VanSlyke, "Organic electroluminescent diodes", Applied Physics Letters, vol. 51, No.12, 913−915 (1987))
筒井哲夫、「応用物理学会有機分子・バイオエレクトロニクス分科会・第3回講習会テキスト」、P.31(1993)
D. F. O’Brien, M. A. Baldo, M. E. Thompson and S. R. Forrest, "Improved energy transfer in electrophosphorescent devices", Applied Physics Letters, vol. 74, No. 3, 442−444 (1999) Tetsuo TSUTSUI, Moon−Jae YANG, Masayuki YAHIRO, Kenji NAKAMURA, Teruichi WATANABE, Taishi TSUJI, Yoshinori FUKUDA, Takeo WAKIMOTO and Satoshi MIYAGUCHI, "High Quantum Efficiency in Organic Light−Emitting Devices with Iridium−Complex as a Triplet Emissive Center", Japanese Journal of Applied Physics, Vol. 38, pp. L1502−L1504 (1999)
M. A. Baldo, M. E. Thompson and S. R. Forrest, "High−efficiency fluorescent organic light−emitting devices using a phosphorescent sensitizer", Nature(London), Vol. 403, 750−753 (2000)
M. Thompson, S. Lamansky, P. Djurovich, D. Murphy, F. Abdel−Razzaq, S. R. Forrest, M. Baldo, P. E. Burrows, C. Adachi, T. X. Zhou and J. J. Brown, "Phosphorescent Materials and Devices", The 10th International Workshop on Inorganic and Organic Electroluminescence (EL ’00), 35−38
このようにして得られる本発明の燐光性化合物は、上記一般式[化9]で表される配位子の構造を変化させることにより、様々な発光色を得ることができる。その具体例としては、例えば下記構造式[化13]〜[化17]などがある。ただし、本発明で用いる燐光性化合物は、これらに限定されるものではない。
本実施の形態1では、本発明の燐光性化合物を含む発光層と、低分子系材料からなる正孔注入層、正孔輸送層、正孔阻止層(ホールブロッキング層)および電子輸送層を有する電界発光素子の素子構成について図1を用いて説明する。
本実施の形態2では、本発明の燐光性化合物を含む発光層と、高分子系材料からなる正孔注入層を有し、これらを湿式プロセスにて形成する電界発光素子の素子構成について図2を用いて説明する。
本実施の形態3では、本発明の燐光性化合物と蛍光性化合物の二種類を含む発光層と、低分子系材料からなる正孔注入層、正孔輸送層、正孔阻止層(ホールブロッキング層)および電子輸送層を有する電界発光素子の素子構成について図3を用いて説明する。
本合成例では、上記構造式[化13]で表される本発明の燐光性化合物の合成法を例示する。まず、3−チオフェンカルボキシアルデヒドとアニリンを等モル量、エタノール中にて4時間環流後、溶媒を留去することによって下記構造式[化18]で表される配位子原料を得た(黄色液状)。
本合成例では、上記構造式[化15]で表される本発明の燐光性化合物の合成法を例示する。まず、合成例1と同様の手法にて、上記構造式[化19]の複核錯体を得る。
Claims (12)
- 下記一般式で表される燐光性化合物を用いた電界発光素子。
- 請求項1において、前記Mは、イリジウム元素または白金元素であることを特徴とする電界発光素子。
- 請求項1乃至請求項9のいずれか一項において、
前記燐光性化合物を、発光体として用いたことを特徴とする電界発光素子。 - 請求項1乃至請求項10のいずれか一項に記載の電界発光素子を用いたことを特徴とする発光装置。
- 請求項11に記載の発光装置を表示部に備えたことを特徴とする電気器具。
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