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. Discovering new raw materials to improve light efficiency and reduce costs has always been a director of LED technology development.
1. Plastic aluminum
After combining the advantages and disadvantages of heat dissipation of plastics and aluminum, the LED plastic-clad aluminum heat-dissipating kit was developed and launched into the market. This heat-dissipating material is wrapped with the 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 easier to process and shape, so the shape and style of the plastic-coated aluminum are 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 applied to 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 so that the electrical enclosure can be made without 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, lightweight 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.
