New concept-based phosphor with planting corner angle and penetration and diffusion layer and light-emitting device

Abstract

The invention relates to a new concept-based phosphor with a planting corner angle and a penetration and diffusion layer. The phosphor is characterized by comprising an inorganic compound phosphor, a corner angle planting agent and a penetration planting agent, wherein primary bonding of the corner angle planting agent and the surface of the inorganic compound phosphor is carried out to form the inorganic compound phosphor with the planting corner angle; and secondary bonding of the penetration planting agent and the surface of the inorganic compound phosphor with a corner angle shape is carried out to form the phosphor with the planting corner angle and the penetration and diffusion layer. The phosphor with the planting corner angle and the penetration and diffusion layer has excellent cold-to-hot state performance and good chemical stability and is suitable for various light-emitting devices. The preparation method provided by the invention is simple, convenient and reliable, and is suitable for industrialized mass production and manufacturing.

Description

technical field

[0001] The invention belongs to the technical field of LED phosphors and light-emitting devices, and in particular relates to a phosphor and a light-emitting device based on a new concept that can be effectively excited by ultraviolet light, purple light or blue light. Background technique

[0002] In the context of global energy shortage, LED lighting products have attracted much attention. With the rapid development of white LED technology, the replacement of traditional lighting sources and backlights is accelerating, and semiconductor lighting will be popularized rapidly. In the field of LED packaging, the stability and yield rate of finished LED lamp beads have attracted much attention, especially the color temperature stability of LED lamp beads during use, because the use of existing phosphors needs to be reconciled in LED packaging materials, while LED The thermal conductivity of the packaging material is much smaller than that of the phosphor, so the...

Examples

Embodiment 1

[0050] Weigh 100g of (Sr,Ca)AlSiN 3 :Eu 2+ Red phosphor, 0.1g calcium oxide angular planting agent, mix the above raw materials for 3 hours, put them into a molybdenum crucible, then quickly move them into a tube furnace, and then gradually heat up to 200°C under the protection of nitrogen atmosphere, and keep warm for 12 hours , to get (Sr,Ca)AlSiN with planted CaO corners 3 :Eu 2+ Red phosphor; weigh 100g of (Sr,Ca)AlSiN with planted calcium oxide corners 3 :Eu 2+ Red phosphor, 0.5g thermal conductivity 10W / m.k, particle size 2nm, specific surface area 80cm 2 / g of nano-silica and 200mL of absolute ethanol were added to a three-necked flask equipped with a tetrafluoroethylene stirring rod and a thermometer placed in a water bath, stirred and heated to 70°C for 2h, and then the reaction was terminated. After suction filtration, washing with absolute ethanol and drying, (Sr,Ca)AlSiN with planted nano-silica infiltration diffusion layer and calcium oxide corners was obtain...

Embodiment 2

[0052] Weigh 100g of (Sr,Ca)AlSiN 3 :Eu 2+ Red phosphor, 0.2g alumina edge planting agent, mix the above raw materials for 3 hours, put them into a molybdenum crucible, then quickly move them into a tube furnace, and then gradually raise the temperature to 400°C under the protection of nitrogen atmosphere, and keep warm for 12 hours , to get (Sr,Ca)AlSiN with planted alumina corners 3 :Eu 2+ Red phosphor; Weigh 100g of (Sr,Ca)AlSiN with planted alumina corners 3 :Eu 2+ Red phosphor, 1.0g thermal conductivity 20W / m.k, particle size 15nm, specific surface area 150cm 2 / g of nano-magnesium oxide and 200mL of absolute ethanol were respectively added to a three-necked flask equipped with a tetrafluoroethylene stirring rod and a thermometer placed in a water bath, stirred and heated to 70°C for 2h, and then the reaction was terminated. After suction filtration, washing with absolute ethanol and drying, the (Sr,Ca)AlSiN with implanted nano-magnesia infiltration diffusion layer a...

Embodiment 3

[0054] Weigh 100g of (Sr,Ca)AlSiN 3 :Eu 2+ Red phosphor, 0.8g of strontium oxide angular planting agent, mix the above raw materials for 3 hours, put them into a molybdenum crucible, then quickly move them into a tube furnace, and then gradually raise the temperature to 800°C under the protection of a nitrogen atmosphere, and keep it warm for 12 hours , to obtain (Sr,Ca)AlSiN with planted strontium oxide edges 3 :Eu 2+ Red phosphor; Weigh 100g of (Sr,Ca)AlSiN with planted strontium oxide edges 3 :Eu 2+ Red phosphor, 1.8g thermal conductivity 40W / m.k, particle size 50nm, specific surface area 500cm 2 / g of nano-zinc oxide and 200mL of absolute ethanol were respectively added to a three-necked flask equipped with a tetrafluoroethylene stirring rod and a thermometer placed in a water bath, stirred and heated to 70°C for 2h, and then the reaction was terminated. After suction filtration, washing with absolute ethanol and drying, (Sr,Ca)AlSiN with implanted nano-zinc oxide inf...

technical field

[0001] The invention belongs to the technical field of LED phosphors and light-emitting devices, and in particular relates to a phosphor and a light-emitting device based on a new concept that can be effectively excited by ultraviolet light, purple light or blue light. Background technique

[0002] In the context of global energy shortage, LED lighting products have attracted much attention. With the rapid development of white LED technology, the replacement of traditional lighting sources and backlights is accelerating, and semiconductor lighting will be popularized rapidly. In the field of LED packaging, the stability and yield rate of finished LED lamp beads have attracted much attention, especially the color temperature stability of LED lamp beads during use, because the use of existing phosphors needs to be reconciled in LED packaging materials, while LED The thermal conductivity of the packaging material is much smaller than that of the phosphor, so the...

Examples

Embodiment 1

[0050] Weigh 100g of (Sr,Ca)AlSiN 3 :Eu 2+ Red phosphor, 0.1g calcium oxide angular planting agent, mix the above raw materials for 3 hours, put them into a molybdenum crucible, then quickly move them into a tube furnace, and then gradually heat up to 200°C under the protection of nitrogen atmosphere, and keep warm for 12 hours , to get (Sr,Ca)AlSiN with planted CaO corners 3 :Eu 2+ Red phosphor; weigh 100g of (Sr,Ca)AlSiN with planted calcium oxide corners 3 :Eu 2+ Red phosphor, 0.5g thermal conductivity 10W / m.k, particle size 2nm, specific surface area 80cm 2 / g of nano-silica and 200mL of absolute ethanol were added to a three-necked flask equipped with a tetrafluoroethylene stirring rod and a thermometer placed in a water bath, stirred and heated to 70°C for 2h, and then the reaction was terminated. After suction filtration, washing with absolute ethanol and drying, (Sr,Ca)AlSiN with planted nano-silica infiltration diffusion layer and calcium oxide corners was obtain...

Embodiment 2

[0052] Weigh 100g of (Sr,Ca)AlSiN 3 :Eu 2+ Red phosphor, 0.2g alumina edge planting agent, mix the above raw materials for 3 hours, put them into a molybdenum crucible, then quickly move them into a tube furnace, and then gradually raise the temperature to 400°C under the protection of nitrogen atmosphere, and keep warm for 12 hours , to get (Sr,Ca)AlSiN with planted alumina corners 3 :Eu 2+ Red phosphor; Weigh 100g of (Sr,Ca)AlSiN with planted alumina corners 3 :Eu 2+ Red phosphor, 1.0g thermal conductivity 20W / m.k, particle size 15nm, specific surface area 150cm 2 / g of nano-magnesium oxide and 200mL of absolute ethanol were respectively added to a three-necked flask equipped with a tetrafluoroethylene stirring rod and a thermometer placed in a water bath, stirred and heated to 70°C for 2h, and then the reaction was terminated. After suction filtration, washing with absolute ethanol and drying, the (Sr,Ca)AlSiN with implanted nano-magnesia infiltration diffusion layer a...

Embodiment 3

[0054] Weigh 100g of (Sr,Ca)AlSiN 3 :Eu 2+ Red phosphor, 0.8g of strontium oxide angular planting agent, mix the above raw materials for 3 hours, put them into a molybdenum crucible, then quickly move them into a tube furnace, and then gradually raise the temperature to 800°C under the protection of a nitrogen atmosphere, and keep it warm for 12 hours , to obtain (Sr,Ca)AlSiN with planted strontium oxide edges 3 :Eu 2+ Red phosphor; Weigh 100g of (Sr,Ca)AlSiN with planted strontium oxide edges 3 :Eu 2+ Red phosphor, 1.8g thermal conductivity 40W / m.k, particle size 50nm, specific surface area 500cm 2 / g of nano-zinc oxide and 200mL of absolute ethanol were respectively added to a three-necked flask equipped with a tetrafluoroethylene stirring rod and a thermometer placed in a water bath, stirred and heated to 70°C for 2h, and then the reaction was terminated. After suction filtration, washing with absolute ethanol and drying, (Sr,Ca)AlSiN with implanted nano-zinc oxide inf...

Images