New materials use in LED luminaires

In the field of LEDs, cost and heat dissipation issues have always been two major problems that have plagued the development and popularization of LEDs. It has always been a direction of LED technology development to explore new raw materials to improve light efficiency and reduce costs.

1. Plastic aluminum

After combining the advantages and disadvantages of heat dissipation of plastics and aluminum, the LED plastic package aluminum heat sink kit was developed and launched into the market. This heat dissipation material is wrapped with plastic material of the outer material, while the interior is made of aluminum for heat conduction. After that, the product performance is better, the thermal conductivity is strong and its cost is controlled. In addition, the plastic itself is relatively easy to process and shape, so the shape and style of the plastic-coated aluminum is rich, and meets the needs of different places.

The plastic aluminum heat dissipation has the advantages of high quality and low price compared with the aluminum material, the cost is reduced, the market demand is met, and the production demand of the merchant is satisfied, and the profit is improved. In addition, this material is easier to shape and build, so it can be recycled, saving cost and being environmentally friendly.

2, magnesium alloy

The main element is aluminum, which is then blended with a small amount of magnesium or other metal materials to enhance its hardness. It is characterized by its high thermal conductivity, high strength, low density, corrosion resistance, recyclability, good thermal conductivity and anti-electromagnetic radiation. New Materials. Magnesium-aluminum alloy is used in the housing and heat-dissipating module of the LED lamp, which can quickly dissipate the heat generated when the LED lamp operates, and prolong the service life of the lamp. The advantages of magnesium alloys for LED lamps are as follows:

(1) Good heat dissipation

Magnesium-aluminum alloy can effectively dissipate the internal heat to the outside, and use magnesium-aluminum alloy on the outer casing and the heat-dissipating component to make the electrical enclosure have no heat dissipation holes.

(2) Lightweight

In order to achieve environmental protection, energy saving and emission reduction, the lighting accessories made of magnesium-aluminum alloy profiles can not only effectively reduce the load-bearing, reduce the load, but also minimize the additional damage.

(3) Better electromagnetic shielding performance

Used in LED lamps, it can effectively reduce the harm of electromagnetic to the human body and reduce the influence of electromagnetic on communication signals.

3. Graphene

Graphene is gradually replacing metal parts for heat-conducting parts of LED lamps, including lamp holders, cooling heat-dissipating cups and housings. Compared with metal materials, graphene has the characteristics of uniform heat dissipation, light weight and flexible design. It can reduce system cost by 30% when applied to LED lamps.

4. Two-dimensional semiconductor MX2 material

With a unique lattice structure and characteristics, M is generally a transition metal element, and X is generally a chalcogen element. Quantitative transient absorption measurements indicate that the charge transfer time of the MX2 material heterojunction structure is below 50 femtoseconds, which is comparable to the fastest time recording of organic optoelectronic materials. The MX2 has excellent electrical and optical performance, and its large-area synthesis technology is rapidly evolving, and it is expected to obtain photonic and optoelectronic applications in the future. These two-dimensional semiconductors have the same hexagonal "honeycomb" structure and ultra-high-speed conductivity as graphene, unlike graphene, which have a natural energy band.