报告题目：The invention of high efficient blue LEDs and future lighting

报 告 人：Shuji Nakamura (2014 Nobel Laureate in Physics)

报告时间：2016年7月31日10：30

报告地点：金沙总站6165地址主楼327报告厅

报告摘要：In 1970's and 80’s, an efficient blue and green light-emitting diodes (LED) were the last missing elements for solid-state display and lighting technologies due to the lack of suitable materials. By that time, III-nitride alloys was regarded the least possible candidate due to various "impossible" difficulties. However, a series of unexpected breakthroughs in 1990's totally changed people's view angle. Finally, the first high efficient blue LEDs were invented and commercialized at the same time of 1993. Nowadays, III-nitride-based LEDs have become the most widely used light source in many applications. The LED light bulbs are more than ten times efficient than incandescent bulb, and they last for 50 years! At their current adoption rates, by 2020, LEDs can reduce the world’s need for electricity by the equivalent of nearly 60 nuclear power plants.

The history of the invention of blue LED and future lighting will be described.