BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Scott Lecture I: Making of Sustainable Smart Society by Transforma
 tive Electronics 1 - Blue LED Story - Prof Hiroshi Amano\, Nagoya Universi
 ty
DTSTART:20170516T150000Z
DTEND:20170516T160000Z
UID:TALK72535@talks.cam.ac.uk
CONTACT:Leona Hope-Coles
DESCRIPTION:Abstract: The function and role of electronics are to transfor
 m energy\, for example\, from photon\, chemical\, bio\, heat\, and vibrati
 on energy to electric energy and vice versa\, and also from DC to AC\, AC 
 to DC\, and DC to DC electric energy. Highly efficient energy transformati
 on is one of the highest-priority issues for electronics. I believe that g
 roup III nitride semiconductors are among the most promising materials for
  this purpose and for realizing a sustainable smart society. Their most im
 portant application is blue LEDs. Portable games machines and cellular or 
 smart phones are very familiar items. Until the end of the 1990’s\, all 
 the displays of portable games machines and cellular phones were monochrom
 e. The younger generation can now enjoy full-color portable games because 
 of the emergence of blue LEDs. Today\, applications of blue LEDs are not l
 imited to displays. In combination with phosphors\, blue LEDs can act as a
  white light source and are also used in general lighting. In Japan\, abou
 t three-quarters of general lighting systems composed of incandescent and 
 fluorescent lamps will have been replaced with LED lamp systems by 2020\, 
 by which we can reduce total electricity consumption by 7%\, corresponding
  to a saving of 1 trillion Japanese yen per year. To achieve the practical
  application of blue LEDs\, there were several barriers to overcome. In th
 is lecture\, I would like to explain how blue LEDs were developed in spite
  of these barriers. I hope that this presentation will suggest some direct
 ions to young people with visions for the future and the desire to realize
  their dream.   
LOCATION:Pippard Lecture Theatre\, Cavendish Laboratory\, Department of Ph
 ysics
END:VEVENT
END:VCALENDAR