Organic electroluminescence element, illumination device, and display device
AssigneeKonica Minolta, Inc.
InventorsTomohiro OSHIYAMA, Shinya OTSU, Rie KATAKURA, Satoru INOUE
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Abstract
An organic electroluminescence element includes: an anode; a cathode; and a luminous layer. The luminous layer includes: a luminescent dopant having a reorganization energy of 0 eV to 0.7 eV in electron transition from a ground state (S0) to a lowest excited triplet state (T1); and a host compound having a reorganization energy of 0 eV to 0.3 eV in electron transfer reaction between a ground state (S0) and an anionic radical state (AR), and having a molecular weight within a range of 500 to 3000.
Claims17
An organic electroluminescence element comprising:
- an anode;
- a cathode;
- and
- a luminous layer, wherein
- the luminous layer includes:
- a luminescent dopant having a reorganization energy of 0 eV to 0.7 eV in electron transition from a ground state (S0) to a lowest excited triplet state (T1);
- and
- a host compound having a reorganization energy of 0 eV to 0.3 eV in electron transfer reaction between a ground state (S0) and an anionic radical state (AR), and having a molecular weight within a range of 500 to 3000.
An organic electroluminescence element comprising:
- an anode;
- a cathode;
- and
- a luminous layer, wherein
- the luminous layer includes:
- a luminescent dopant having a reorganization energy of 0 eV to 0.7 eV in electron transition from a ground state (S0) to a lowest excited triplet state (T1);
- and
- a host compound represented by Formula (1):
- where R1 to R7, R9, R10 and Ra each represent a hydrogen atom or a substituent group;
- R8 represents a hydrogen atom;
- and n represents an integer of 0 to 4,
- the host compound having a molecular weight within a range of 500 to 3000.
Dependencies are inferred from the claim text.