Nobel price physics for blue LED inventors

I don't really know the story of GaN but it was my impression that Nakamura was the guy who made it happen. (Were the other added to appease the Japanese?)

George H.

On a sunny day (Tue, 7 Oct 2014 11:42:35 -0700 (PDT)) it happened George Herold wrote in :

Yes, I remember his story..

I dunno, possible, there was some lawsuit IIRC, Nobel price has always been about politics, Einstein comes to mind with 'photon'.

Hardly. Akasaki holds some enabling patents for fabricating the materials.

Nakamura turned their basic research into an industrial process.

But the headlines are all misleading. They invented the *efficient* blue LED there were feebly GaN and SiC blue LEDs back in the 1970's. (certain high end hifi delighted in using them as indicators)

It is a very worthy physics Nobel prize though. A lot of clever quantum mechanics and exotic fabrication techniques made it possible.

Yup, sorry for wild speculation.

George h.

Which was by itself worth the price.

I understand that there are some that say the photon does not exist, but then we could have a TON of Vietnamese noodles (PHO).

saki and Hiroshi Amano

kamura was the guy who made it happen. (Were the other added to appease th e Japanese?)

The AIP has offered free access to a handful of the relevant papers.

"Novel metalorganic chemical vapor deposition system for GaN growth" Shuji Nakamura1, Yasuhiro Harada1 and Masayuki Seno1 Appl. Phys. Lett. 58, 2021 (1991);

"High?power InGaN/GaN double?heterostructure violet light e mitting diodes" Shuji Nakamura1, Masayuki Senoh1 and Takashi Mukai1 Appl. Phys. Lett. 62, 2390 (1993);

" x Ga(1?x)N/In y Ga(1?y)N superlattices grown on GaN films " Shuji Nakamura1, Takashi Mukai1, Masayuki Senoh1, Shin?ichi Nagahama1 and Naruhito Iwasa1 J. Appl. Phys. 74, 3911 (1993);

"Candela?class high?brightness InGaN/AlGaN double?h eterostructure blue?light?emitting diodes" Shuji Nakamura1, Takashi Mukai1 and Masayuki Senoh1 Appl. Phys. Lett. 64, 1687 (1994);

"High?brightness InGaN/AlGaN double?heterostructure blue? ??green?light?emitting diodes" Shuji Nakamura1, Takashi Mukai1 and Masayuki Senoh1 J. Appl. Phys. 76, 8189 (1994);

"InGaN/AlGaN blue?light?emitting diodes" Shuji Nakamura1 J. Vac. Sci. Technol. A 13, 705 (1995);

Jinwook Burm1, William J. Schaff1, Lester F. Eastman1, Hiroshi Amano2 and Isamu Akasaki2 Appl. Phys. Lett. 68, 2849 (1996);

"Optical gain and carrier lifetime of InGaN multi?quantum well stru cture laser diodes" Shuji Nakamura1, Masayuki Senoh1, Shin?ichi Nagahama1, Naruhito Iwasa1,Takao Yamada1, Toshio Matsushita1, Yasunobu Sugimoto1 and Hiroyuki Kiyoku1 Appl. Phys. Lett. 69, 1568 (1996);

"Continuous?wave operation of InGaN multi?quantum?w ell?structure laser diodes at 233 K" Shuji Nakamura1, Masayuki Senoh1, Shin?ichi Nagahama1, Naruhit o Iwasa1, Takao Yamada1, Toshio Matsushita1, Yasunobu Sugimoto1 and Hiroyuki Kiy oku1 Appl. Phys. Lett. 69, 3034 (1996);

"Room?temperature continuous?wave operation of InGaN multi ?quantum?well structure laser diodes" Shuji Nakamura1, Masayuki Senoh1, Shin?ichi Nagahama1, Naruhito Iwasa1, Takao Yamada1, Toshio Matsushita1, Yasunobu Sugimoto1 and Hiroyuki Kiyo ku1 Appl. Phys. Lett. 69, 4056 (1996);

There are more, but I've run out of enthusiasm. I'll forward a copy of the e-mail to anybody who asks for it via snipped-for-privacy@ieee.org

A couple of the one's I haven't posted also have Shuji Nakamura1 as first a uthor.

Taking into account that in its own frame of reference time stands still you could say it does not exist. And it's a strange thing, when you see it, it does not exist anymore.

On a sunny day (Tue, 07 Oct 2014 19:12:18 -0700) it happened Robert Baer wrote in :

At the risk of starting a long thread with I dunno what, 'photon' is just a mathematical construct. Basicaly tht energy needed to knock an electron around, or more precisely the quantisation of the interaction the EM wave with matter as we know it, or more mathematical speaking frequency * planck's constant, or if you really want to venture into the quicksand:

Whatever way .. itsnotaparticle.

It (Einsteins is a particle) has hurt science and sunderstaning more than anything else I have seen, 'cept for QM and Feynman of course. And of course others have diffrent opinions.

hehe

On a sunny day (Wed, 08 Oct 2014 12:19:41 +0800) it happened Reinhardt Behm wrote in :

Its obvious, once the EM wave has interacted with matter something is moving. Energy has been transferred, conservation of... Indeed it (photon) does not exists as a particle, but for example an electron affected by it does.

On a sunny day (Wed, 08 Oct 2014 09:49:34 +0800) it happened Reinhardt Behm wrote in :

No, it was wrong.

Einstein was just a political puppet after WW2 and to up the image of the Jews he hadtoget that nobel. In the same way they give nobel peace prices to war criminals, on the winning side that is. :-)

Einstein was an idiot.

Your post does clearly illustrate an idiot.

As a physicist I have to disagree. The explanation of the photoelectric effect was the first verification of Planck's theory to explain the discrepancies for the calculation of the black body radiation by assuming quantized energy states. This deserved the Nobel price by itself independent of Einstein other achievements in physics. That he did not get the price for special or general relativity was political. And he did not get the price after WW2 but in 1922.

You are trying to be rational with a fruitcake. That is also an irrational act.

(please forget my earlier snarky comments.)

George H.