= Hiroshi Amano
{c}
{wiki}
= H. Amano
{c}
{synonym}
<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>.<Growth of GaN on Sapphire via Low-Temperature Deposited Buffer Layer and Realization of p-Type GaN by Mg Doping Followed by Low Energy Electron Beam Irradiation by Hiroshi Amano>[Sections II, IV and V]{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>.<Growth of GaN on Sapphire via Low-Temperature Deposited Buffer Layer and Realization of p-Type GaN by Mg Doping Followed by Low Energy Electron Beam Irradiation by Hiroshi Amano>[Figures 1–4 and sections IV–V]{ref}
\Image[https://commons.wikimedia.org/wiki/Special:Redirect/file/Hiroshi_Amano_20141211.jpg?width=260]
{title=Portrait of <Hiroshi Amano>}
{description=研究振興局振興企画課; attribution: 文部科学省ホームページ. https://creativecommons.org/licenses/by/4.0/[CC BY 4.0], via Wikimedia Commons.}
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{width=260}
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