LED phosphors: a brief introduction of several phosphors

Ⅰ. Yellow phosphor powder Yellow Phosphors
1. Introduction: YAG phosphor is the fluorescent material of white LED. A blue light chip is coated with a layer of fluorescent substance, and a blue light LED is used to illuminate the fluorescent substance to generate complementary yellow light with blue light. Then the complementary yellow light and blue light are mixed with the principle of lens, and the white light required by the naked eye can be obtained.
2. Product Performance
2.1 The Appearance of the product: the yellow phosphors were yellowish powders.
2.2 Chemical Composition: The main chemical Composition of the yellow phosphors is Y6Al10O12.
2.3 Chemical Stability: The phosphor has good chemical Stability and does not decompose or deteriorate at room temperature.
2.4 Safety: In accordance with THE EU RoHS standards,LED phosphors do not contain any radioactive substances, are non-toxic and harmless, will not cause harm to human body, and have no pollution to the environment.
3. Application: White LED can be directly obtained by using YAG phosphor and blue LED chip. In order to adapt to the packaging process requirements of different manufacturers, our YAG phosphor series products are divided into various models according to different blue chip bands. Our YAG phosphors are inorganic and do not contain any organic phosphors. If must add, please call to explain. (For white LED lighting)
Ⅱ. Red Phosphors Red Phosphors
1. Introduction: The red phosphor series products include: sulfide and sulfide.
2. Product Performance:
2.1 The morphology (Appearance) of the products: the red phosphors were Pink powders.
2.2 Chemical Composition: The main chemical Composition of the red phosphor is: SrO,CaO,MoO,Y2OS2.
2.3 Chemical Stability: Pay attention To moisture away from sulphide phosphors and humidity. However, sulphur-free phosphors were chemically Stable and did not decompose or deteriorate under room temperature (Stable for phosphoor without sulphide).
2.4 Safety: In accordance with THE EU RoHS standards,LED phosphors do not contain any radioactive substances, are non-toxic and harmless, will not cause harm to human body, and have no pollution to the environment.
3. Application: If red phosphor is used together with blue LED chip, red light can be obtained directly; If red phosphor is used together with yellow phosphor and blue LED chip, warm white light can be obtained. Red phosphor can also be combined with green phosphor and blue LED chip to obtain white light, this process can avoid some patent restrictions.
Ⅲ. Green phosphor powder Green Phosphors
1. Introduction: The green phosphor series products do not contain sulfide.
2. Product Performance:
2.1 The Appearance of the product: the green phosphor was Greenish powder.
2.2 Chemical Composition: The main chemical Composition of the green phosphors are Al2O3,Cr2O3 and Y2O3.
2.3 Chemical Stability: The green phosphor has good chemical Stability and is Stable at room temperature.
2.4 Safety: in accordance with EU RoHS standards.
3. Application: High brightness white LED can be obtained by combining QGN green phosphor with yellow phosphor and blue LED chip; If green phosphor is used with blue LED chip, green light can be obtained directly; If green phosphor is used together with yellow phosphor and blue LED chip, cold white light can be obtained. Green phosphors can also be combined with red phosphors and blue LED chips to obtain white light, which can avoid some patent restrictions.
Phosphors Ⅳ. Infrared fluorescent powder IR
1. Introduction: Infrared phosphor series includes red, green and blue products. Combined with infrared light source, it can solve the problem of light pollution. (Three kinds of IR Phosors contain Red, green and Blue materials, to solve problem of lighting Pollution with IR lighting Source.)
2. Product Performance:
2.1 The Appearance of the product: the infrared phosphors were white powders.
2.2 Chemical Composition: The main chemical Composition of infrared phosphors are Al2O3,Yb2O3,Er2O3 and Y2O3.
2.3 Chemical Stability: Infrared phosphors have good chemical Stability and are Stable at room temperature.
2.4 Safety: in accordance with EU RoHS standards.
3. Application: High brightness white light can be obtained by combining infrared phosphor with infrared LED projector; If green infrared phosphor is used together with infrared LED chip, green light can be obtained directly. If red infrared phosphor is used with infrared LED chip, red light can be obtained. Blue light can be obtained by using blue infrared phosphor and infrared LED chip.