Hiroshi Amano is an electrical engineer whose work with Isamu Akasaki helped overcome two obstacles to blue light-emitting diodes: growing high-quality gallium nitride and obtaining controllable p-type semiconductor.[ref]
A low-temperature-deposited aluminium nitride buffer layer improved subsequent gallium nitride growth on sapphire. His lecture compares the resulting surfaces using scanning electron microscopy. The research also showed that low-energy electron irradiation of magnesium-doped gallium nitride could activate p-type semiconductor, enabling a p-n junction. The two results address different requirements: structural quality and the electrical activity of the semiconductor doping.[ref]
Portrait of Hiroshi Amano
. 研究振興局振興企画課; attribution: 文部科学省ホームページ. CC BY 4.0, via Wikimedia Commons. Source.
Hiroshi Amano is a Japanese physicist and Nobel laureate known for his work on blue light-emitting diodes (LEDs). Born on September 11, 1960, he, along with Isamu Akasaki and Shuji Nakamura, was awarded the Nobel Prize in Physics in 2014 for the invention of efficient blue light sources, which are vital for the development of energy-saving white LED lighting.
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