Hideki Hirayama

Deep-ultraviolet light-emitting diodes with external quantum efficiency higher than 20% at 275 nm achieved by improving light-extraction efficiency

Takayoshi Takano, Takuya Mino, Jun Sakai et al. · Applied Physics Express · 2017 · 560 citations

Engineering, Electrical Engineering, Materials Science +15

Recent progress and future prospects of AlGaN-based high-efficiency deep-ultraviolet light-emitting diodes

Hideki Hirayama, Noritoshi Maeda, Sachie Fujikawa et al. · Japanese Journal of Applied Physics · 2014 · 547 citations · Full text

Engineering, Electrical Engineering, Materials Science +17

The 2020 UV emitter roadmap

Hiroshi Amano, Ramón Collazo, Carlo De Santi et al. · Journal of Physics D Applied Physics · 2020 · 508 citations · Full text

Engineering, Materials Engineering, Materials Science +17

222–282 nm AlGaN and InAlGaN‐based deep‐UV LEDs fabricated on high‐quality AlN on sapphire

Hideki Hirayama, Sachie Fujikawa, Norimichi Noguchi et al. · physica status solidi (a) · 2009 · 421 citations

Engineering, Electrical Engineering, Materials Engineering +17

Quaternary InAlGaN-based high-efficiency ultraviolet light-emitting diodes

Hideki Hirayama · Journal of Applied Physics · 2005 · 352 citations

Engineering, Materials Engineering, Materials Science +17