Tag Archives: manufacture

Why blue LEDS are difficult to make? Scientists Find Gallium Nitride Behind it

Using sophisticated computer simulations, British scientists have uncovered the mystery of why blue light-emitting diodes (LEDs) are so tricky to make. They have revealed the complex properties of their main component – gallium nitride. “While blue LEDs have now been manufactured for over a decade, there has always been a gap in our understanding of how they actually work and ...

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Diwali: Remembering Sivakasi where fire crackers are made

By R. Chandrasekaran SIVAKASI: At least on one autumn night each year, a mid-sized industrial town in southern Tamil Nadu owns the Indian skies. Nearly all firecrackers that dazzle the firmament across the length and breadth of the country on the Diwali night come from Sivakasi, the country’s pyrotechnic capital, located more than 500 kilometers to the south of Chennai. ...

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