Compound, light-emitting device, light-emitting device, electronic equipment, and lighting device
A technology for light-emitting devices and compounds, which can be applied to compounds of Group 4/14 elements of the periodic table, light-emitting materials, and electric solid-state devices, etc. The effect of high luminous efficiency and high reliability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment approach 1
[0064] In this embodiment, the compound which is one aspect of this invention is demonstrated. The compound of one embodiment of the present invention is represented by the following general formula (G1).
[0065] [chemical formula 6]
[0066]
[0067] In the above general formula (G1), A 1 and A 2 Each independently represents a substituted or unsubstituted fused aromatic ring with 10 to 30 carbon atoms, a substituted or unsubstituted condensed heteroaryl ring with 3 to 30 carbon atoms, or the formula (Z-1) or The structure represented by general formula (Z-2), Z 1 and Z 2 Each independently has a structure represented by general formula (Z-1) or general formula (Z-2). In general formula (Z-1), X 1 and X 2 Each independently represents an alkyl group having 3 to 10 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms, a cycloalkyl group having a crosslinked structure having 7 to 10 carbon atoms, and carbon Any of trialkylsilyl g...
Embodiment approach 2
[0144] In this embodiment mode, an example of a light-emitting device preferably using the compound of one embodiment of the present invention will be described. In addition, if Figure 1A As shown, the light-emitting device has a first electrode 101 (in Figure 1A Corresponding to the anode) and the second electrode 102 (in Figure 1A A structure in which an EL layer 103 is sandwiched between a pair of electrodes consisting of a cathode), the EL layer 103 includes at least a light emitting layer 113, and may also include a hole injection layer 111, a hole transport layer 112, an electron transport layer 114, and an electron transport layer 113. injection layer 115 and other functional layers.
[0145] In addition, the light-emitting layer 113 includes a light-emitting substance (guest material) and a host material. In the light-emitting device, by applying a voltage between a pair of electrodes, electrons and holes are respectively injected from the cathode and the anode into...
example 1
[0155] This structural example shows the following: the light emitting layer 113 in the light emitting device has a compound 131 used as a host material and a compound 132 used as a light emitting substance (guest material), wherein the compound 131 uses a TADF material and is used as a light emitting substance (guest material). ) compound 132 uses a fluorescent light-emitting substance. Therefore, it is preferable to use the compound of one embodiment of the present invention as compound 132 which is a fluorescent substance. Figure 3A An example of energy level correlation in the light emitting layer 113 of the present structural example is shown. Listed below Figure 3A signs and symbols in .
[0156] · Host(131): compound 131
[0157] · Guest(132): compound 132
[0158] ·T C1 : T1 energy level of compound 131
[0159] ·S C1 : S1 energy level of compound 131
[0160] ·S G : S1 energy level of compound 132
[0161] ·T G : T1 energy level of compound 132
[0162] ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| reflectance | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More