Kazunobu Kojima

Professor

Osaka University

Japan

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Professor Kazunobu Kojima is a faculty member at Osaka University, Japan. His research areas include semiconductor physics, focusing on the characterization and optical properties of nitride and perovskite materials. Recent publications highlight his work on deformation potentials in InGaN, optical cooling mechanisms in halide perovskites, and the luminescence characteristics of deep UV materials.

Articles (14)

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2025

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2024

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2024

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2024

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2023

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2022

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2022

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2022

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2022

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2022

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2022

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2022

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2021

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2021

Collaborators (7)

Takumi Yamada

特定助教 / Program-Specific Assistant Professor

Kyoto University

JAPAN

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Shigefusa Chichibu

Tohoku University

JAPAN

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Keito Mori-Tamamura

Osaka University

JAPAN

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TOSHIHIRO MORIGA

Tokushima University

JAPAN

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Yuichi Ota

Tokyo Metropolitan Industrial Technology Research Institute

JAPAN

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Takeyoshi Onuma

Professor

Kogakuin University

JAPAN

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Kohei Shima

Associate professor

Tohoku University

JAPAN

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Kazunobu Kojima

Research Interests

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About

Articles (14)

Determination of deformation potentials in InGaN at visible light region

Optical Cooling of Dot-in-Crystal Halide Perovskites: Challenges of Nonlinear Exciton Recombination

Switching of major nonradiative recombination centers (NRCs) from carbon impurities to intrinsic NRCs in GaN crystals

230 nm wavelength range far-UVC LED with low Al-composition differentiation between well and barrier layers of MQWs

Steady-state and dynamic characteristics of deep UV luminescence in rock salt-structured MgxZn1−xO

(Invited) Characterization of Semiconductor Crystals Based on Omnidirectional Photoluminescence (ODPL) Spectroscopy

Weak metastability of Al x Ga1−x N (x = 13/24, 15/24, 17/24) shown by analyzing AlGaN grown on AlN with dense macrosteps

Precise determination of deformation potentials in InGaN alloy material in semipolar and nonpolar InGaN quantum wells

Enhanced quantum efficiency of a self-organized silica mixed red phosphor CaAlSiN3:Eu

Anti-Stokes photoluminescence from CsPbBr3 nanostructures embedded in a Cs4PbBr6 crystal

Anti-Stokes photoluminescence from CsPbBr3 nanostructures embedded in a Cs4PbBr6 crystal

Dual-peak electroluminescence spectra generated from Al<sub> <i>n</i>/12</sub>Ga<sub>1-<i>n</i>/12</sub>N (<i>n</i>=2, 3, 4) for AlGaN-based LEDs with nonflat quantum wells

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

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

Collaborators (7)

Takumi Yamada

Shigefusa Chichibu

Keito Mori-Tamamura

TOSHIHIRO MORIGA

Yuichi Ota

Takeyoshi Onuma

Kohei Shima

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