Quantum dot glass phosphor powder as well as preparation method and application thereof

Abstract

The invention relates to quantum dot glass phosphor powder as well as a preparation method and application thereof. The quantum dot glass phosphor powder is prepared from the following raw materials in percentage by weight: 1%-15% of a quantum dot material and 85%-99% of a silicon-based mesoporous material. The preparation method is as follows: sintering the quantum dot material and the silicon-based mesoporous material. The quantum dot glass phosphor powder is applied to a white-light LED (light-emitting diode) apparatus, an LED display, an LED backlight source, a signal indicator and an indicator for illumination. The quantum dot glass phosphor powder with different luminous intensities and transmittance is obtained by adjusting the quantum dot doping concentration; and the quantum dot glass phosphor powder with different luminous positions is obtained by adjusting the reaction conditions and selecting different single-quantum dot or core-shell quantum dot materials. The matrix material provided by the invention is quartz glass, and has good heat stability; the luminescence property of the quantum dot can be well kept; the high-temperature luminous efficiency of the quantum dot can be ensured; and meanwhile, the quantum dot glass phosphor powder is simple in preparation technology, energy-saving and environmentally friendly, so that the quantum dot glass phosphor powder has a good application prospect.

Description

technical field

[0001] The invention belongs to the field of quantum dot materials and their preparation and application, in particular to a quantum dot glass fluorescent powder and its preparation method and application. Background technique

[0002] In recent years, with the global energy crisis and the gradual enhancement of people's awareness of energy conservation and environmental protection, light-emitting diodes (LEDs) are gradually replacing traditional lighting materials and becoming a new generation of lighting sources due to their advantages such as low energy consumption, low heat production, and long life. At present, white LEDs are mainly realized in three types: 1) using red, green, and blue LEDs to combine light, that is, multi-chip white LEDs; 2) using blue LED chips and yellow phosphors, which are obtained by complementing blue and yellow colors White light, or use a blue LED chip with red and green phosphors, and mix the blue light emitted by the chip, th...

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