Growth and Fabrication of High External Quantum Efficiency AlGaN-Based Deep Ultraviolet Light-Emitting Diode Grown on Pattern Si Substrate

por Tran, Binh Tinh, Hirayama, Hideki
Publicado 2017

Nonrelevant quantum levels effecting on the current in 2-well terahertz quantum cascade lasers

por Wang, Li, Lin, Tsung-Tse, Wang, Ke, Hirayama, Hideki
Publicado 2022

Optical gain reduction caused by nonrelevant subbands in narrow-period terahertz quantum cascade laser designs

por Wang, Li, Lin, Tsung-Tse, Wang, Ke, Hirayama, Hideki
Publicado 2022

Leakages suppression by isolating the desired quantum levels for high-temperature terahertz quantum cascade lasers

por Wang, Li, Lin, Tsung-Tse, Chen, Mingxi, Wang, Ke, Hirayama, Hideki
Publicado 2021

High growth temperature for AlN by jet stream gas flow metalorganic vapor phase epitaxy

por Nagamatsu, Kentaro, Miyagawa, Takumi, Tomita, Atsushi, Hirayama, Hideki, Takashima, Yuusuke, Naoi, Yoshiki
Publicado 2023

Investigation of V/III ratio dependencies for optimizing AlN growth during reduced parasitic reaction in metalorganic vapor phase epitaxy

por Tomita, Atsushi, Miyagawa, Takumi, Hirayama, Hideki, Takashima, Yuusuke, Naoi, Yoshiki, Nagamatsu, Kentaro
Publicado 2023

Direct Growth and Controlled Coalescence of Thick AlN Template on Micro-circle Patterned Si Substrate

por Tran, Binh Tinh, Hirayama, Hideki, Maeda, Noritoshi, Jo, Masafumi, Toyoda, Shiro, Kamata, Norihiko
Publicado 2015

Performance Improvement of AlN Crystal Quality Grown on Patterned Si(111) Substrate for Deep UV-LED Applications

por Tran, Binh Tinh, Maeda, Noritoshi, Jo, Masafumi, Inoue, Daishi, Kikitsu, Tomoka, Hirayama, Hideki
Publicado 2016

Short-period scattering-assisted terahertz quantum cascade lasers operating at high temperatures

por Wang, Li, Lin, Tsung-Tse, Wang, Ke, Grange, Thomas, Birner, Stefan, Hirayama, Hideki
Publicado 2019

Achieving 9.6% efficiency in 304 nm p-AlGaN UVB LED via increasing the holes injection and light reflectance

por Khan, M. Ajmal, Maeda, Noritoshi, Yun, Joosun, Jo, Masafumi, Yamada, Yoichi, Hirayama, Hideki
Publicado 2022

Reduction of parasitic reaction in high-temperature AlN growth by jet stream gas flow metal–organic vapor phase epitaxy

por Nagamatsu, Kentaro, Tsuda, Shota, Miyagawa, Takumi, Aono, Reiya, Hirayama, Hideki, Takashima, Yuusuke, Naoi, Yoshiki
Publicado 2022

M-plane GaN terahertz quantum cascade laser structure design and doping effect for resonant-phonon and phonon-scattering-injection schemes

por Ye, Fan, Wang, Yiyang, Wang, Li, Lin, Tsung-Tse, Zeng, Fantai, Ji, Yue, Zhang, Jinchuan, Liu, Fengqi, Hirayama, Hideki, Wang, Ke, Shi, Yi, Zheng, Youdou, Zhang, Rong
Publicado 2023