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Shiren Kazushi
Researcher at Kwansei Gakuin University
Publications - 28
Citations - 1387
Shiren Kazushi is an academic researcher from Kwansei Gakuin University. The author has contributed to research in topics: Electroluminescence & Aryl. The author has an hindex of 8, co-authored 28 publications receiving 869 citations. Previous affiliations of Shiren Kazushi include Kyoto University.
Papers
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Journal ArticleDOI
Ultrapure Blue Thermally Activated Delayed Fluorescence Molecules: Efficient HOMO–LUMO Separation by the Multiple Resonance Effect
Takuji Hatakeyama,Takuji Hatakeyama,Shiren Kazushi,Kiichi Nakajima,Shintaro Nomura,Soichiro Nakatsuka,Keisuke Kinoshita,Jingping Ni,Yohei Ono,Toshiaki Ikuta +9 more
TL;DR: Ultrapure blue-fluorescent molecules based on thermally activated delayed fluorescence are developed that exhibit a deep blue emission at 467 nm with a full-width at half-maximum of 28 nm and an internal quantum efficiency of ≈100%, which represent record-setting performance for blue OLED devices.
Journal ArticleDOI
One-Step Borylation of 1,3-Diaryloxybenzenes Towards Efficient Materials for Organic Light-Emitting Diodes
Hirai Hiroki,Kiichi Nakajima,Soichiro Nakatsuka,Shiren Kazushi,Jingping Ni,Shintaro Nomura,Toshiaki Ikuta,Takuji Hatakeyama +7 more
TL;DR: The development of a one-step borylation of 1,3-diaryloxybenzenes is reported, yielding novel boron-containing polycyclic aromatic compounds, which possess high singlet-triplet excitation energies as a result of localized frontier molecular orbitals induced by bor on and oxygen.
Journal ArticleDOI
Triplet-Energy Control of Polycyclic Aromatic Hydrocarbons by BN Replacement: Development of Ambipolar Host Materials for Phosphorescent Organic Light-Emitting Diodes
Sigma Hashimoto,Toshiaki Ikuta,Shiren Kazushi,Soichiro Nakatsuka,Jingping Ni,Masaharu Nakamura,Takuji Hatakeyama,Takuji Hatakeyama,Takuji Hatakeyama +8 more
TL;DR: In this article, the authors achieved the triplet-energy control of polycyclic aromatic hydrocarbons (PAHs) by replacing the Carbon−Carbon (CC) unit with a Boron−Nitrogen (BN) unit.
Patent
Material for organic electroluminescent elements, organic electroluminescent element, display device, and lighting device
Yohei Ono,Shiren Kazushi,Ikuta Toshiaki,Ni Jingping,Matsushita Takeshi,Takuji Hatakeyama,Masaharu Nakamura,Hashimoto Shiguma +7 more
TL;DR: In this article, an organic electroluminescent element having improved driving voltage and improved current efficiency is provided by using, as a material for organic ELS elements, a polycyclic aromatic compound in which a nitrogen atom and another heteroatom or a metal atom (X) are adjacent to each other in a non-aromatic ring.
Patent
Benzo[c]carbazole compound that has substituent bearing pyridine ring, and organic electroluminescent element
TL;DR: In this article, an organic electroluminescent element can be produced using a benzo[c]carbazole compound represented by general formula (1) as the electron-transporting material.