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Circularly Polarized Absorption and Luminescence of Semiconductor Eu-OCN Nanocrystals in the Blue Region of the Electromagnetic Spectrum

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Title: Circularly Polarized Absorption and Luminescence of Semiconductor Eu-OCN Nanocrystals in the Blue Region of the Electromagnetic Spectrum
Authors: Hasegawa, Yasuchika Browse this author →KAKEN DB
Koide, Katsumasa Browse this author
Tsurui, Makoto Browse this author
Kitagawa, Yuichi Browse this author
Nakanishi, Takayuki Browse this author
Doi, Yoshihiro Browse this author
Hinatsu, Yukio Browse this author
Fushimi, Koji Browse this author →KAKEN DB
Keywords: circularly polarized luminescence
Issue Date: 2-Sep-2020
Publisher: Wiley-Blackwell
Journal Title: ChemPhysChem
Volume: 21
Issue: 17
Start Page: 2019
End Page: 2024
Publisher DOI: 10.1002/cphc.202000468
Abstract: Semiconductor nanomaterials with efficient polarized-light control in the blue region of the visible spectrum are promising candidates for modern and future photo-information technology, display devices, and optical sensing applications. New-type semiconductor Eu(OCN)(2)nanocrystals with circularly polarized absorption (CD: circular dichroism) and emission (CPL: circularly polarized luminescence) under an applied magnetic field are demonstrated here for the first time. The effective CD signal at 1.6 T was observed at approximately 440 nm. The dissymmetry factor of CPL under 100 K, g(M-CPL,)was estimated to be 0.01. These characteristic circularly polarized absorption and emission phenomena of Eu(OCN)(2)nanocrystals should be caused by combination between the"Faraday AandC terms"of the magnetic moment in the excited state. Polarized-light control using Eu(OCN)(2)nanocrystals in the blue-light region of the electromagnetic spectrum is a large first step into a new world of photo-functional semiconductor nanomaterials.
Rights: This is the peer reviewed version of the following article: Y. Hasegawa, K. Koide, M. Tsurui, Y. Kitagawa, T. Nakanishi, Y. Doi, Y. Hinatsu, K. Fushimi, ChemPhysChem 2020, 21, 2019. , which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 長谷川 靖哉

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