Preparation and application of high refractive phenyl silicone resin for LED-Iota

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Service > Preparation and application of high refractive phenyl silicone resin for LED

Preparation and application of high refractive phenyl silicone resin for LED

LED (Light Emitting Diode) light emitting diode light emitting diode constitute III and V compound semiconductor p-n diodes. Under the direction of the forward bias, the electron is in the process of the combination and the elimination of the light emitting in the process of the combination.
As a pioneer in global lighting, incandescent lamps are gradually replaced by a new generation of light emitting diode (LED), which is gradually fading out of people's lives. Over the past few years, the color of LED, brightness and power have changed greatly. As a new type of high efficiency solid light source, LED has the advantages of small size, energy saving and environmental protection, so it is widely used in light, display and back light source, etc., which plays an important role in the traditional light source, but so far, they have not been fully used in the field of family and public lighting. Organic silicon material with its outstanding performance is to lay the foundation for the LED lighting tool.
LED is a kind of luminescent semiconductor material, which can be directly converted into light emitting display device. The heart of the LED is a semiconductor chip, which can emit light. The light source can be controlled by a condenser lens or a lens, which is usually made of silicone rubber / silicone resin, plastic, glass and other materials. Led because it is easy to control, low voltage DC drive, low energy consumption, high stability, response time is short, color light etc.. So it is widely used in screen display system, lights, cell phone or digital products backlight areas such as, application in landscape lighting, interior lights, car lights, mining lamp has also been positive development; but the use of LED in the lighting in the area of power is not mature. At present, the main LED packaging material is epoxy resin; but it is resistant to heat and light deficiency, heating is easy to turn yellow, can not meet the high brightness light-emitting diode (high power LED) package. Organic silicon material has good optical performance and light transmittance over 90%. It is not yellow in the weather, heat resistance, high temperature environment. It can attract impact, good adhesion, soft and environmental protection, so it is gradually replacing the epoxy resin as the main LED bonding, packaging, coating and optical materials. Silicone materials used in the field of LED production, has undoubtedly become an important factor to promote the development of LED lighting.
Because of the complex structure and technology of LED packaging, the use of LED is a hot research topic in recent years. Because of the high transmittance, high refractive index, thermal stability, low moisture absorption and low temperature, it is obviously superior to epoxy resin. It is widely used in high power LED packaging. The high temperature resistance of silicone resin is used to encapsulate LED chip.
Future research directions of LED with organic silicon materials
LED application of organic silicon material also need to work on the development of energy saving, reducing the emission of greenhouse gases, the way to reduce solid waste. Silicone technology can make LED more bright, more durable, and to provide people with new lighting options.
Due to the application of street lamp lighting, underground coal miners, the demand for large power LED is very large, domestic and foreign large-scale chemical research and development institutions are to accelerate the development of products and expand production capacity, to meet the growing market demand.

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