LED lights are energy efficient but difficult to manufacture

One-layer LED paves way for green lighting revolution

An American researcher has developed a new low-cost type of LED light which he claims can lead to more widespread adoption of the technology. 

Unlike other types of LED lights, which require engineers to carefully apply four or five layers of material on top of each other in order to achieve the desired performance, this novel new low-cost LED concept only requires one.

"It can potentially revolutionise lighting technology," said Zhibin Yu, Assistant Professor of Industrial and Manufacturing Engineering at Florida State University. "In general, the cost of LED lighting has been a big concern thus far. Energy savings have not balanced out high costs. This could change that."

The new LED, described in the latest issue of the journal Advanced Materials, is based on a combination of organic and inorganic materials and offers very high efficiency. The material is soluble and can be applied in the form of paint. It emits blue, green or red light and can be used to make a light bulb.

The material’s one-layer composition is the main advantage as it simplifies the manufacturing process.

"In the future, to do manufacturing, it's a big challenge if you have to deal with multiple layers," explained the researcher.

LED technology is becoming increasingly popular because of its low electricity consumption. However, more widespread deployment of the technology has so far been hindered by high manufacturing costs and quality issues.

A new, more cost-effective LED technology could speed up the uptake and have a major effect on electricity consumption. According to the US Department of Energy, residential LED lighting uses at least 75 per cent less energy than regular incandescent lighting.

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