About HIRAYAMA Hideki
About RIKEN, Saitama, JPN
About MAEDA Noritoshi
About RIKEN, Saitama, JPN
About FUJIKAWA Sachie
About RIKEN, Saitama, JPN
About TOYODA Shiro
About RIKEN, Saitama, JPN
About TOYODA Shiro
About Saitama Univ., Saitama, JPN
About KAMATA Norihiko
About Saitama Univ., Saitama, JPN
About Japanese Journal of Applied Physics
About light emitting diode
About aluminum compound
About gallium compound
About nitride
About ultraviolet radiation
About compound semiconductor
About substrate (plate)
About sapphire
About threading dislocation
About dislocation density
About layer
About aluminum nitride
About semiconductor thin film
About quantum efficiency
About carrier injection
About electron
About barrier
About efficiency
About deep UV
About contact layer
About aluminum gallium nitride
About ore
About precious stone
About aluminium gallium nitride
About sacrificial layer
About internal quantum efficiency
About 電子注入効率
About external quantum efficiency
About 多重量子井戸障壁
About light extraction efficiency
About Light emitting devices
About AlGaN
About 高効率
About 紫外線発光ダイオード
About 展望