New Green LED for One-Fourth the Cost

June 5, 2008 / No Comments

A university research team in Japan has developed a new type of green LED that is equally as energy-efficient as the existing LEDs.

What’s different is these new LEDs can be made for one-fourth the cost.

Energy efficient, good for the world and cheap.

The LED uses:

greenled.thumbnail New Green LED for One Fourth the Cost

1. cheaper material

2. a relatively simple process of thermal diffusion

3. involves a much lower initial investment in equipment.

Confusion starts here:

Green LEDS are made with gallium phosphide. This costs $500 per 25-gram ingot. The method is known as molecular beam epitaxy. The equipment costs about $3 million.

The new green LEDS use zinc telluride, costs $100/25-gram ingot and the diffusion causing equipment costs half that of MBE.

Simplicity returns.

The goal is to have a commercial version within 2-3 years.

The new green LED will be five to 10 time more energy-efficient as existing products.

The world will be a happier place, IF we are saving energy and money at the same time.

Let’s all say thank you to the Saga University research team in Japan.

“Thank you!!!”


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