Shigefusa F. Chichibu - Publications, H-index & Citations

Shigefusa F. Chichibu

Tohoku University

62H指数

607论文数

1.8W被引数

收录论文 123

发表时间

Luminescence dynamics of indirect-bandgap sp2-bonded hexagonal and rhombohedral BN polytypes 六方和菱形BN多型的间接带隙sp2键合发光动力学

Applied Physics Express

IF2.2

2026-05-01

PREAI

Chichibu, Shigefusa F.; Shima, Kohei; Hara, Kazuhiko

Deep-ultraviolet luminescence from sp2-bonded BN films grown by metalorganic chemical vapor deposition using tris(dimethylamino)borane

Journal of Crystal Growth

IF2

2025-10-01

OAAI

Shima, Kohei; Tsujitani, Haruto; Chichibu, Shigefusa F.

Recent progress on highly efficient and long-lifetime AlGaN-based light-emitting diodes 近期关于高效率、长寿命AlGaN基发光二极管的研究进展

APPLIED PHYSICS EXPRESS

IF2.2

2025-10-01

PREAI

Saito, Yoshiki; Miyazaki, Atsushi; Boyama, Shinya; Okuno, Koji; Ishiguro, Hisanori; Takeuchi, Tetsuya; Shima, Kohei; Chichibu, Shigefusa F.

Vacancy-Type Defects in n-Type GaN Fabricated by Low-Dose Ion Implantation Studied by a Monoenergetic Positron Beam 通过单能正电子束研究低剂量离子注入法制备的n型GaN中的空位型缺陷

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS

IF1.8

2025-09-01

OAAI

Uedono, Akira; Iguchi, Hiroko; Horita, Masahiro; Suda, Jun; Shima, Kohei; Chichibu, Shigefusa F.; Ishibashi, Shoji

Roles of Al-vacancy complexes on the luminescence spectra of low dislocation density Si-doped AlN grown by halide vapor phase epitaxy

APPLIED PHYSICS LETTERS

IF3.6

2025-03-01

PREAI

Chichibu, S. F.; Kikuchi, K.; Moody, B.; Mita, S.; Collazo, R.; Sitar, Z.; Kumagai, Y.; Ishibashi, S.; Uedono, A.; Shima, K.

Improved midgap recombination lifetimes in GaN crystals grown by the low-pressure acidic ammonothermal method

APPLIED PHYSICS LETTERS

IF3.6

2024-04-29

PREAI

Shima, K.; Kurimoto, K.; Bao, Q.; Mikawa, Y.; Saito, M.; Tomida, D.; Uedono, A.; Ishibashi, S.; Ishiguro, T.; Chichibu, S. F.

Cathodoluminescence spectroscopy of monolayer hexagonal boron nitride

SCIENTIFIC REPORTS

IF3.9

2024-01-02

OAAI

Shima, Kohei; Cheng, Tin S.; Mellor, Christopher J.; Beton, Peter H.; Elias, Christine; Valvin, Pierre; Gil, Bernard; Cassabois, Guillaume; Novikov, Sergei V.; Chichibu, Shigefusa F.

Operation-induced degradation mechanisms of 275-nm-band AlGaN-based deep-ultraviolet light-emitting diodes fabricated on a sapphire substrate

APPLIED PHYSICS LETTERS

IF3.6

2023-05-17

PREAI

Chichibu, S. F.; Nagata, K.; Oya, M.; Kasuya, T.; Okuno, K.; Ishiguro, H.; Saito, Y.; Takeuchi, T.; Shima, K.

Temperature Field, Flow Field, and Temporal Fluctuations Thereof in Ammonothermal Growth of Bulk GaN-Transition from Dissolution Stage to Growth Stage Conditions

MATERIALS

IF3.2

2023-02-28

OAAI

Schimmel, Saskia; Tomida, Daisuke; Ishiguro, Tohru; Honda, Yoshio; Chichibu, Shigefusa E. F.; Amano, Hiroshi

High-Energy Computed Tomography as a Prospective Tool for In Situ Monitoring of Mass Transfer Processes inside High-Pressure Reactors-A Case Study on Ammonothermal Bulk Crystal Growth of Nitrides including GaN

MATERIALS

IF3.2

2022-09-05

OAAI

Schimmel, Saskia; Salamon, Michael; Tomida, Daisuke; Neumeier, Steffen; Ishiguro, Tohru; Honda, Yoshio; Chichibu, Shigefusa F.; Amano, Hiroshi

Recombination dynamics of indirect excitons in hexagonal BN epilayers containing polytypic segments grown by chemical vapor deposition using carbon-free precursors

APPLIED PHYSICS LETTERS

IF3.6

2022-06-07

PREAI

Chichibu, S. F.; Shima, K.; Kikuchi, K.; Umehara, N.; Takiguchi, K.; Ishitani, Y.; Hara, K.

Enhanced quantum efficiency of a self-organized silica mixed red phosphor CaAlSiN3:Eu 自组织二氧化硅混合红色荧光粉CaAlSiN3:Eu的增强量子效率

JOURNAL OF SOLID STATE CHEMISTRY

IF3.5

2022-05-01

OAAI

Oishi, Masatsugu; Shiomi, Shohei; Ohara, Koji; Fujishiro, Fumito; Kai, Yoichiro; Shih, Shao-Ju; Moriga, Toshihiro; Chichibu, Shigefusa F.; Takatori, Aiko; Kojima, Kazunobu

Dual-peak electroluminescence spectra generated from Al n /12Ga1-n/12N (n=2, 3, 4) for AlGaN-based LEDs with nonflat quantum wells

JOURNAL OF PHYSICS D-APPLIED PHYSICS

IF3.2

2022-03-29

PREAI

Nagasawa, Yosuke; Kojima, Kazunobu; Hirano, Akira; Ippommatsu, Masamichi; Honda, Yoshio; Amano, Hiroshi; Chichibu, Shigefusa F.

Improved minority carrier lifetime in p-type GaN segments prepared by vacancy-guided redistribution of Mg

APPLIED PHYSICS LETTERS

IF3.6

2021-11-03

PREAI

Shima, K.; Tanaka, R.; Takashima, S.; Ueno, K.; Edo, M.; Kojima, K.; Uedono, A.; Ishibashi, S.; Chichibu, S. F.

Dopant activation process in Mg-implanted GaN studied by monoenergetic positron beam

SCIENTIFIC REPORTS

IF3.9

2021-10-19

OAAI

Uedono, Akira; Tanaka, Ryo; Takashima, Shinya; Ueno, Katsunori; Edo, Masaharu; Shima, Kohei; Kojima, Kazunobu; Chichibu, Shigefusa F.; Ishibashi, Shoji

Discrete wavelengths observed in electroluminescence originating from Al1/2Ga1/2N and Al1/3Ga2/3N created in nonflat AlGaN quantum wells

JOURNAL OF PHYSICS D-APPLIED PHYSICS

IF3.2

2021-09-07

PREAI

Nagasawa, Yosuke; Kojima, Kazunobu; Hirano, Akira; Sako, Hideki; Hashimoto, Ai; Sugie, Ryuichi; Ippommatsu, Masamichi; Honda, Yoshio; Amano, Hiroshi; Chichibu, Shigefusa F.

Reduced nonradiative recombination rates in c-plane Al0.83In0.17N films grown on a nearly lattice-matched GaN substrate by metalorganic vapor phase epitaxy

APPLIED PHYSICS LETTERS

IF3.6

2021-08-31

PREAI

Li, L. Y.; Shima, K.; Yamanaka, M.; Kojima, K.; Egawa, T.; Uedono, A.; Ishibashi, S.; Takeuchi, T.; Miyoshi, M.; Chichibu, S. F.

Self-formed compositional superlattices triggered by cation orderings in m-plane Al1-xInxN on GaN

SCIENTIFIC REPORTS

IF3.9

2020-10-29

OAAI

Chichibu, Shigefusa F.; Shima, Kohei; Kojima, Kazunobu; Kangawa, Yoshihiro

Urbach-Martienssen tail as the origin of the two-peak structure in the photoluminescence spectra for the near-band-edge emission of a freestanding GaN crystal observed by omnidirectional photoluminescence spectroscopy

APPLIED PHYSICS LETTERS

IF3.6

2020-10-28

PREAI

Kojima, K.; Chichibu, S. F.

Effects of ultra-high-pressure annealing on characteristics of vacancies in Mg-implanted GaN studied using a monoenergetic positron beam

SCIENTIFIC REPORTS

IF3.9

2020-10-15

OAAI

Uedono, Akira; Sakurai, Hideki; Narita, Tetsuo; Sierakowski, Kacper; Bockowski, Michal; Suda, Jun; Ishibashi, Shoji; Chichibu, Shigefusa F.; Kachi, Tetsu

研究方向