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Luminescent material, and organic light-emitting element, wavelength-converting light-emitting element, light-converting light-emitting element, organic laser diode light-emitting element, dye laser, display device, and illumination device using same

A technology of organic light-emitting elements and light-emitting materials, which can be used in light-emitting materials, lighting devices, lasers, etc., and can solve problems such as short life and poor light resistance

Inactive Publication Date: 2013-06-12
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, blue phosphorescent materials with electron-withdrawing groups introduced have relatively good luminous efficiency, but have poor light resistance and short lifespan.

Method used

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  • Luminescent material, and organic light-emitting element, wavelength-converting light-emitting element, light-converting light-emitting element, organic laser diode light-emitting element, dye laser, display device, and illumination device using same
  • Luminescent material, and organic light-emitting element, wavelength-converting light-emitting element, light-converting light-emitting element, organic laser diode light-emitting element, dye laser, display device, and illumination device using same
  • Luminescent material, and organic light-emitting element, wavelength-converting light-emitting element, light-converting light-emitting element, organic laser diode light-emitting element, dye laser, display device, and illumination device using same

Examples

Experimental program
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Effect test

no. 1 approach

[0075]

[0076] As a result of painstaking research by the present inventors, it was found that transition metal complexes can emit blue phosphorescence with good efficiency, and the above transition metal complexes have at least one A ligand whose electron density is greater than 0.239 and less than 0.711 in the outermost p-orbital of the highest occupied orbital (HOMO) energy level of the element that coordinates with the metal. In addition, in the quantum chemical calculation in this embodiment, the quantum chemical calculation Gaussian09 program (Gaussian09Revision-A.02-SMP) using the density functional calculation method (DFT method) is used to apply the basis function 6- 31G, in the case of metal complexes, apply the basis function LanL2DZ for Ir complexes and 6-31G* except for Ir. In addition, information on quantum chemical calculations (Gaussian09 / DFT / RB3LYP / 6-31G) can be obtained from, for example, http: / / www.gaussian.com / index.htm (acknowledged September 8, 2011)....

no. 2 approach

[0236] Figure 7 It is a schematic cross-sectional view showing a second embodiment of the organic light-emitting element of this embodiment. Figure 7 The illustrated organic light emitting element 20 has a substrate 1 , a TFT (Thin Film Transistor) circuit 2 provided on the substrate 1 , and an organic light emitting element 10 (hereinafter, sometimes referred to as “organic EL element 10 ”). The organic light emitting element 10 has: a pair of electrodes 12 and 16 provided on the substrate 1 ; and an organic EL layer (organic layer) 17 sandwiched between the pair of electrodes 12 and 16 . The organic light emitting element 20 is a top emission type organic light emitting element driven by an active driving method. In addition, in Figure 7 in, for with Figure 6 The same constituent elements of the illustrated organic light emitting element 10 are given the same reference numerals, and description thereof will be omitted.

[0237] Figure 7 The illustrated organic ligh...

Embodiment

[0351] Hereinafter, the present invention will be described in more detail based on examples, but the present invention is not limited by the following examples.

[0352] [Synthesis of transition metal complexes]

[0353] The compounds synthesized in Synthesis Examples 1 to 8 are shown below. In addition, in the following structural formulas, Ph represents a phenyl group. In addition, in the following synthesis examples, the compounds at each stage and the final compound (transition metal complex) were identified by MS spectroscopy (FAB-MS).

[0354]

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Abstract

A luminescent material contains a transition metal complex having at least one ligand in which the electron density in the p-orbital, which is in the outermost shell of a coordination element site of a metal at the level of the highest occupied molecular orbital calculated according to quantum chemical calculation (Gaussian09 / DFT / RB3LYP / 6-31G), is greater than 0.239 and less than 0.711.

Description

technical field [0001] The present invention relates to a light-emitting material and an organic light-emitting element using the same, a wavelength-converting light-emitting element (color-converting light-emitting element), a light-converting light-emitting element, an organic laser diode light-emitting element, a pigment laser, a display device, and an illumination device. [0002] this application claims priority based on Japanese Patent Application No. 2010-226741 for which it applied to Japan on October 6, 2010, and uses the content here. Background technique [0003] Towards the reduction of power consumption of organic EL (Electroluminescence) devices, we are developing high-efficiency light-emitting materials. Phosphorescent light-emitting materials that utilize light emission from triplet excited states can achieve higher luminous efficiency than fluorescent light-emitting materials that use only fluorescence light from singlet excited states, and therefore, develo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06H01L51/50H05B33/12H05B33/24
CPCC09K11/06C09K2211/1007C09K2211/1044C09K2211/1055C09K2211/107C09K2211/1074C09K2211/185H01S5/36H05B33/10H01S3/213H01S5/041H01S3/08009H10K59/38H10K59/12H10K85/342H10K50/11H10K2101/10H10K50/852H10K50/854C07F15/0033G09G3/3291
Inventor 冈本健大江昌人藤田悦昌近藤克己
Owner SHARP KK
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