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Organometallic complexes and related compositions and methods

A complex, metal technology, applied in cadmium organic compounds, chemical instruments and methods, group 2/12 organic compounds without C-metal bonds, etc.

Pending Publication Date: 2020-02-18
费尔南多托姆克鲁兹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Recently, heavy metal complexes have been extensively explored to obtain high solid-state internal quantum efficiency (IQE) close to 100% 7，8，14-16，18-22 , although EQE does not reach about 50%

Method used

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  • Organometallic complexes and related compositions and methods
  • Organometallic complexes and related compositions and methods
  • Organometallic complexes and related compositions and methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] Synthesis of embodiment 1-complex

[0098] About 41.2 mg of aminopyrazine was dissolved in 10 ml of ethanol at room temperature, and the mixture was stirred until it was completely dissolved. Meanwhile, 20.4 mg of doping type cadmium(II) acetate was dissolved in 10 ml of distilled water. Subsequently, the two solutions were mixed and kept at 25 °C until the solvent evaporated, resulting in a crystalline solid identified as complex 1.

[0099] All reflectance data were collected on the APEX II CCD detector of a Bruker-AXS Kappa Duo diffractometer using MoKα radiation from a 1 μS microsource with multilayer optics. The structure was determined by the direct phase search method, and then by the F 2 A full matrix least squares method was performed using the anisotropic thermal parameters of all non-hydrogen atoms (while keeping the displacement parameters of the hydrogen atoms fixed and set to isotropic (U 各向同性 (H)=1.2U 当量 (CH or NH 2 ) or 1.5U 当量 (water or CH 3 ))...

Embodiment 2

[0101] Example 2-fluorescence spectrum and complex quantum yield

[0102] The fluorescence emission spectrum of the solid sample of complex 1 was measured using a Fluorolog FL3-221 Horiba Jobin-Yvon fluorometer. The excitation spectrum of this sample in the range of 200nm to 280nm and the emission spectrum of 280nm to 700nm were measured. The solid sample is glued to the support and positioned at 45° to the front sidewall.

[0103] For quantum yield calculations, the average of the three excitation spectral readings for complex 1 samples in the range of 276 nm and emission at 400 nm was averaged. Subsequently, calculate the area of ​​the spectral curve obtained using the software of the fluorometer itself. Quantum yield measurements were taken from light absorption measurements of the samples and luminescence emission measurements of the standards and samples. Determine the internal quantum yield of the sample by comparing it with the quantum yield of barium sulfate used ...

Embodiment 3

[0110] Example 3 - Photoluminescence Emission Spectra

[0111] Photoluminescence (PL) measurements were recorded using a double monochromator and Hamamatsu photomultiplier tubes as detectors (Fluorolog Fl3-221 from Horiba Jobin-Yvon) under excitation from a Xe arc lamp delivering 450W. Through fiber optics, the Spectralon TM An integrating sphere (Quanta-□ from Horiba Jobin-Yvon) was coupled to this device. Excitation reflection and emission spectra were collected using entrance and exit slits fixed at 0.8 nm bandpass, and each emission spectral point was collected at every 1.0 nm. IQE, EQE and emission color coordinate values ​​were determined by FluorEssence V3.5 software with a Fluorolog FL3-221 spectrofluorometer and a Quantum- Integrating sphere for refinement.

[0112] Photoluminescence excitation and emission spectra were recorded using a double monochromator and Hamamatsu photomultiplier tubes as detectors (Fluorolog Fl3-221 from Horiba Jobin-Yvon) under excitati...

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Abstract

Provided herein is a coordination complex of Formula (I): wherein - - - - - is a coordinate bond; where M is a metal; X1, X2, X3, X4, X5, X6, and X7 are each independently selected from a heteroatom;R1, R2, R3, R4, R7, and R8 are each independently selected from H and a saturated or unsaturated, substituted or unsubstituted, cyclic or linear hydrocarbon comprising from 1 to 8 carbon atoms; R5 andR6 are each independently selected from H and a saturated or unsaturated, substituted or unsubstituted, cyclic or linear hydrocarbon comprising from 1 to 8 carbon atoms; and n is an integer.

Description

technical field [0001] The present invention relates to coordination complexes. More specifically, the present invention relates in various aspects to blue light-emitting coordination complexes, related polymers and compositions, and methods of making and using the same. Background technique [0002] Organic light-emitting devices (OLEDs) as solid-state light sources mean that the display technology industry 1-3 . In this context, research on new solid-state light-emitting materials with maximum external quantum efficiency (EQE) in the visible spectral range is required to improve the performance of electronic devices, and has attracted the interest of many materials chemists and electronic device companies 4-9 . The higher the external efficiency of the light emitter, the higher its usability for practical use in OLEDs. In this context, photoluminescence assessment is the first step in screening this class of new promising candidates 7，8，10-17 . Recently, heavy metal ...

Claims

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Application Information

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IPC IPC(8): C07F3/00C07F3/08
CPCC07F3/003H10K85/381H10K85/761H10K50/11C07F3/08C07F3/00H10K50/00C09K11/06C09K2211/1044C09K2211/188H10K2101/10
Inventor 费尔南多·托姆·克鲁兹C·C·达·席尔瓦F·T·马丁斯L·J·Q·玛亚J·A·杜·纳西门托·纳托
Owner 费尔南多托姆克鲁兹
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