Quantum dot ink and preparation method thereof

A technology of quantum dots and quantum dot materials, which is applied in the field of quantum dot ink and its preparation, can solve the problems of low efficiency of light-emitting devices, and achieve the effect of improving current efficiency and uniform film formation
CN109705667AInactive Publication Date: 2019-05-03GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
Publication Date
2019-05-03
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to quantum dot ink which comprises the following raw materials in percentage by weight: 65%-94% of a polar solvent, 5%-15% of a quantum dot material and 1%-20% of a receptor material; the acceptor material is used for forming a shock-based compound. After the quantum dot ink is adopted to prepare a light-emitting layer, the acceptor material in the light-emitting layer can bein contact with a donor material of adjacent other functional layers so as to form an intermolecular electron donor, namely the shock-based compound, triplet state excitons can be effectively converted into singlet excitons, the singlet excitons are transferred to quantum dots through forester fluorescent resonance energy transfer, the quantum dots are excited to emit light, and the current efficiency of a device is improved.
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Description

technical field

[0001] The invention relates to the field of quantum dots, in particular to quantum dot ink and a preparation method thereof. Background technique

[0002] Quantum Dot Light Emitting Diode (QLED) devices fabricated by utilizing the electroluminescent properties of quantum dots, as a new light-emitting device, have received extensive attention in recent years. Compared with traditional organic light-emitting diodes (OLEDs), QLEDs have more excellent color purity, brightness and viewing angles.

[0003] Quantum dot inks usually consist of quantum dots and a solvent. At present, the improvement of quantum dot ink is mainly aimed at quantum dots and their solvents. Through the improvement of quantum dots and their solvents, the quantum dots themselves have higher luminous efficiency, and the ink made is more stable and more suitable for Print. However, when the quantum dot ink has sufficient printability and good stability, the potential gain effect obtained b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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