TW200610437A - Organic electroluminescent device - Google Patents

Organic electroluminescent device

Info

Publication number
TW200610437A
TW200610437A TW094118720A TW94118720A TW200610437A TW 200610437 A TW200610437 A TW 200610437A TW 094118720 A TW094118720 A TW 094118720A TW 94118720 A TW94118720 A TW 94118720A TW 200610437 A TW200610437 A TW 200610437A
Authority
TW
Taiwan
Prior art keywords
hole
layer
electroluminescent device
organic electroluminescent
blocking layer
Prior art date
Application number
TW094118720A
Other languages
Chinese (zh)
Inventor
Shin Kawami
Taishi Tsuji
Original Assignee
Pioneer Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corp filed Critical Pioneer Corp
Publication of TW200610437A publication Critical patent/TW200610437A/en

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/18—Carrier blocking layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2101/00—Properties of the organic materials covered by group H10K85/00
    • H10K2101/10—Triplet emission

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

Disclosed is an organic electroluminescent device having improved luminous efficiency. Specifically disclosed is an organic electroluminescent device (10) comprising at least an anode (11), an organic light-emitting layer (14) containing a phosphorescent material (14b) in a host material (14a), a hole-blocking layer (15), and a cathode (17) wherein the lowest excited triplet energy level of the material constituting the hole-blocking layer (15) is not lower than the lowest excited triplet energy level of the phosphorescent material (14b). It is preferable that a hole-injecting layer (12) and a hole-transporting layer (13) are arranged between the anode (11) and the organic light-emitting layer (14) while an electron-transporting layer (16) is arranged between the cathode (17) and the hole-blocking layer (15).
TW094118720A 2004-06-08 2005-06-07 Organic electroluminescent device TW200610437A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004169484A JP2007266021A (en) 2004-06-08 2004-06-08 Organic electroluminescence device

Publications (1)

Publication Number Publication Date
TW200610437A true TW200610437A (en) 2006-03-16

Family

ID=35503549

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094118720A TW200610437A (en) 2004-06-08 2005-06-07 Organic electroluminescent device

Country Status (3)

Country Link
JP (1) JP2007266021A (en)
TW (1) TW200610437A (en)
WO (1) WO2005122650A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100586243C (en) * 2008-05-30 2010-01-27 中国科学院长春应用化学研究所 A kind of red organic electroluminescence device and preparation method thereof
CN109256474B (en) * 2018-09-03 2021-11-16 云谷（固安）科技有限公司 Organic electroluminescent device and display device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4712232B2 (en) * 2000-07-17 2011-06-29 富士フイルム株式会社 Light emitting device and azole compound
JP2002324676A (en) * 2001-04-26 2002-11-08 Konica Corp Organic electroluminescent element, light emitting source, lighting device, display device and light-emission method
JP4843897B2 (en) * 2003-09-16 2011-12-21 コニカミノルタホールディングス株式会社 Organic electroluminescence element, display device and lighting device

Also Published As

Publication number Publication date
WO2005122650A1 (en) 2005-12-22
JP2007266021A (en) 2007-10-11

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