Presentation 2026

• (In Japanese) Study of Perovskite Layer Deposition Conditions Using the Two-Step Blade Coating Method
  Seima Ishii, Kohei Yamamoto, Hiroyuki Yaguchi, Takurou N. Murakam
  The 87th JSAP Autumn Meeting 2026 (8a-E201-1) (Sapporo, Japan)
  September 8, 2026
• (In Japanese) Analysis of High-Power and Low Current Density Operation in GaAs-Based Terahertz Quantum Cascade Lasers
  Koki Yabe, Takayuki Ishida, Sachie Fujikawa, Yuki Tsuda, Keita Miyagawa, Koichi Akiyama, Yosuke Suzuki, Tsung Tse Lin, Hiroyuki Yaguchi, Hideki Hirayama
  The 87th JSAP Autumn Meeting 2026 (9a-C213-1) (Sapporo, Japan)
  September 9, 2026
• (In Japanese) High-power operation of GaAs-based terahertz quantum cascade lasers with a thick and highly doped active region
  Takayuki Ishida, Koki Yabe, Tsung-Tse Lin, Yuki Tsuda, Keita Miyagawa, Koichi Akiyama, Yosuke Suzuki, Sachie Fujikawa, Hiroyuki Yaguchi, Hideki Hirayama
  The 87th JSAP Autumn Meeting 2026 (9a-C213-2) (Sapporo, Japan)
  September 9, 2026
• (In Japanese) Optimization of EBL for high-efficiency 265 nm band AlGaN UVC-LEDs
  Arata Sasaki, Kazuki Nonaka, Yukio Kashima, Eriko Matsuura, Sachie Fujikawa, Hiroyuki Yaguchi, Hideki Hirayama
  The 87th JSAP Autumn Meeting 2026 (9a-N101-9) (Sapporo, Japan)
  September 9, 2026
• (In Japanese) Effects of Bandgap on the Cell Temperature Dependence of Thermoradiative Power Generation Characteristics
  Ayaka Miyazaki, Naoya Sagawa, Muhammad Waleed Akram, Shuhei Yagi, Hiroyuki Yaguchi
  The 87th JSAP Autumn Meeting 2026 (9a-E217-11) (Sapporo, Japan)
  September 9, 2026
• (In Japanese) X-ray diffraction and photoluminescence characterization of GaP:N fabricated by ion implantation
  Yusei Matsumoto, Rashid Md. Mamun-Or, Hiroyuki Yaguchi, Shuhei Yagi
  The 87th JSAP Autumn Meeting 2026 (9p-PB5-3) (Sapporo, Japan)
  September 9, 2026
• (In Japanese) MBE Growth and Characterization of Dilute Nitride InSbN Thin FIlms
  Kosuke Teramae, Takumi Magaribuchi, Hiroyuki Yaguchi, Sachie Fujikawa
  The 87th JSAP Autumn Meeting 2026 (9p-PB3-6) (Sapporo, Japan)
  September 9, 2026
• (In Japanese) MBE growth and characterization of Sn-doped InSb thin films
  Takumi Magaribuchi, Kosuke Teramae, Hiroyuki Yaguchi, Sachie Fujikawa
  The 87th JSAP Autumn Meeting 2026 (9p-PB3-7) (Sapporo, Japan)
  September 9, 2026
• (In Japanese) Nitrogen Concentration Dependence of Sb Surfactant Effect on Luminescence Properties of GaPN
  Hibiki Saida, Kazuya Yagi, Momoko Nagamine, Hiroyuki Yaguchi, Shuhei Yagi, Kengo Takamiya, Yamato Kyuno, Keisuke Yamane
  The 87th JSAP Autumn Meeting 2026 (9p-PB3-8) (Sapporo, Japan)
  September 9, 2026
• (In Japanese) Elucidation of the Degradation Behavior of Perovskite Solar Cells Attributable to n-Type Oxide Semiconductor Electrodes
  Sora Tsukidate, Takashi Funaki, Kohei Yamamoto, Naoyuki Nishimura, Hiroyuki Yaguchi, Takurou Murakami
  The 87th JSAP Autumn Meeting 2026 (10a-PB1-15) (Sapporo, Japan)
  September 10, 2026
• (In Japanese) Structural Design of GaN-Based 1~3 µm Infrared Quantum Cascade Lasers
  Kazuki Nonaka, Koki Yabe, Sachie Fujukawa, Hiroyuki Yaguchi, Hideki Hirayama
  The 87th JSAP Autumn Meeting 2026 (10a-N101-3) (Sapporo, Japan)
  September 10, 2026
• (In Japanese) Quantum Structure Design of GaN-Based THz Quantum Cascade Lasers Considering High Lying Levels
  Koki Yabe, Kazuki Nonaka, Takayuki Ishida, Sachie Fujikawa, Hiroyuki Yaguchi, Hideki Hirayama
  The 87th JSAP Autumn Meeting 2026 (10a-N101-4) (Sapporo, Japan)
  September 10, 2026
• EQE Increase of 290 nm UVB LED by controlling Ga composition in the AlGaN Electron Blocking Layer (EBL)
  Hamida Zia, M. Nawaz Sharif, Hiroyuki Yaguchi, Hideki Hirayama
  The 87th JSAP Autumn Meeting 2026 (11a-S5-1) (Sapporo, Japan)
  September 11, 2026
• Strain Effect on the Valence Band Energy of β-Ga₂O₃
  Hiroyuki Yaguchi, Shuhei Yagi
  The 37th International Conference on the Physics of Semiconductors 2026 (Tu-P-36) (Tokyo, Japan)
  August 18, 2026
• (In Japanese) Experimental progress toward high-temperature and high-power operation of THz-QCLs
  Takayuki Ishida, Koki Yabe, Keita Miyagawa, Yuki Tsuda, Koichi Akiyama, Yosuke Suzuki, Tsung-Tse Lin, Sachie Fujikawa, Hiroyuki Yaguchi, Hideki Hirayama
  日本学術会議 国際光デー記念シンポジウム (44) (Tokyo, Japan)
  July 3, 2026
• GaAs:N Dilute Nitride Alloys Grown via Nitrogen δ-Doping for Intermediate Band Solar Cells
  Shuhei Yagi, Yoshitaka Okada, Hiroyuki Yaguchi
  UK Semiconductors 2026 (D-O-1) (Sheffield, UK)
  July 2, 2026
• Growth and characterization of InSb_1-xN_x thin films on GaAs(100) by MBE
  Kosuke Teramae, Yuki Shirakawa, Hiroyuki Yaguchi, Sachie Fujikawa
  Compound Semiconductor Week (TuP3A-12) (Kumamoto, Japan)
  May 26, 2026
• Photoluminescence Study of GaPN Alloys Grown Using Sb as a Surfactant
  Hibiki Saida, Kazuya Yagi, Shuhei Yagi, Hiroyuki Yaguchi, Yamato Kyuno, Keisuke Yamane
  Compound Semiconductor Week (TuP3A-15) (Kumamoto, Japan)
  May 26, 2026
• Cell Tempaerature Dependence of Thermoradiative Power Generation in InSb and InGaAs Photodiodes
  Ayaka Miyazaki, Naoya Sagawa, Muhammad Waleed Akram, Shuhei Yagi, Hiroyuki Yaguchi
  Compound Semiconductor Week (TuP3D-12) (Kumamoto, Japan)
  May 26, 2026
• Diode temperature dependence of thermo-radiative power generation measured by using a lock-in amplifier
  Naoya Sagawa, Ayaka Miyazaki, Muhammad Waleed Akram, Shuhei Yagi, Hiroyuki Yaguchi
  Compound Semiconductor Week (TuP3D-16) (Kumamoto, Japan)
  May 26, 2026
• (In Japanese) Micro-Raman Spectroscopic Mapping Evaluation of Single-Crystalline Ge Membranes Exfoliated from Germanium-on-Nothing Structures
  Wenbo Fan, Shuhei Yagi, Hiroyuki Yaguchi
  The 73rd JSAP Spring Meeting 2026 (16a-PA5-1) (Tokyo, Japan)
  March 16, 2026
• (In Japanese) Measurement of cell temperature dependence of thermo-radiative power generation using a lock-in amplifier
  Naoya Sagawa, Ayaka Miyazaki, Muhammad Waleed Akram, Shuhei Yagi, Hiroyuki Yaguchi
  The 73rd JSAP Spring Meeting 2026 (16p-M_101-5) (Tokyo, Japan)
  March 16, 2026
• Development of human safe and efficient 230nm far-UVC LED on c-sapphire for medical applications
  Muhammad Ajmal Khan, Muhammad Nawaz Sharif, Kohei Fujimoto, Arata Sasaki, Amina Yasin, Yukio Kashima, Kosuke Miyauchi, Hiroyuki Yaguchi, Hideki Hirayama
  SPIE OPTO 2026 Physics and Simulation of Optoelectronic Devices XXXIV (San Francisco, USA)
  January, 2026