This year’s Nobel Prize for the light of day – Kristianstadsbladet

This year's Nobel Prize for the light of day – Kristianstadsbladet

Text: TT
Published October 7, 2014 13:01 Updated October 7, 2014 13:02
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Stockholm.

Isamu Akasaki Hiroshi Amano and Shuji Nakamura awarded the Nobel Prize in Physics.

– Amazing, incredible, said a happy Nakamura over a bad line from California.

All the Laureates were born in Japan. Nakamura is an American citizen.

Akasaki researchers at Meijo University in Japan and Nagoya University, as Amano.

Nakamura researcher at the University of California.

The three sheep price for the invention of efficient blue LEDs which enabled bright and energy-efficient white light sources.

The blue LED light was something that was lacking before. If you combine it with green and red you get white light that has good energy efficiency, says Per Delsing, Chairman of the Nobel Committee for Physics.

Two of the three went to get before the dividend, says Per Delsing.

– Nakamura woke us in the night, at two o’clock. For Akasaki was there last night, so he’s awake now. But Amano was on a plane to him, we have not reached yet. Hopefully it’s someone to meet him at the airport and give him the good news, says Per Delsing.

The motivation from the Nobel Committee states:

“The Laureates have invented a new energy efficient and environmentally friendly light source – the blue LED point . Due to the white light can be created in a new way, and we have received more durable and effective alternative to older lamps, according to the Explanatory Memorandum.

When they made the invention in the early 1990s opened the way to changing lighting technology from scratch.

The usual light bulb lit up the whole of the 1900s, the LED will light up the 2000′s. “

A light emitting diode (LED) consists of a number layer of semiconductor material. Unlike other light sources, where a large part of the energy is waste heat, converts the LED electricity directly into light particles.

In the early 1990s, they managed to get the powerful blue rays from their semiconductors – which both academia and industry have previously failed. Red and green LEDs had long existed, but without the blue light to white light is created.

The white LEDs are lit with a bright white light. They have a long life and low energy consumption. They are constantly evolving and becoming more efficient with higher light output. Since approximately one-quarter of the world’s electricity consumption goes to lighting adds LEDs to conserve the earth’s resources.

With LED lamp options also hope to raise the quality of life over 1.5 billion people in the world lacking electricity network. The low energy requirements make the lamp can be powered by cheap and local solar electricity.

– This is a invention price. We really emphasizes the utility of this invention, said Anne L’Huillier, member of the Nobel Committee for Physics at the press conference.

Professor Olle Inganäs pointed at the press conference including the importance of the invention for people in developing countries. Over 1.5 billion of the world population lacks electricity grid and this is lights that can run on solar power because they are so energy efficient.

Per Delsing think Alfred Nobel would really be happy with the price, because it is an invention that makes lighting much more energy efficient, and allows the mercury no longer need to use in lamps.

facts about the winners:

Isamu Akasaki is 85 years old and born in Chiran, Japan. He became in 1964 a Ph.D. in 1964 at Nagoya University, Japan. He is a professor at Meijo University, Nagoya, and Honorary Professor at Nagoya University, Japan.

Hiroshi Amano is 54 years old and born in Hamamatsu. He is since 1989 a PhD at Nagoya University in Japan, and then a professor at the university.

Shuji Nakamura is 60 years old and born in Ikata, Japan. Was 1994 a PhD at the University of Tokushima, Japan. Is now a professor at the University of California, Santa Barbara, USA.