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Luminescent Silicon Nanoparticles Surface-Modified with Chiral Molecules

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Title: Luminescent Silicon Nanoparticles Surface-Modified with Chiral Molecules
Authors: Miyano, Mari Browse this author
Nakanishi, Takayuki Browse this author
Wada, Satoshi Browse this author
Kitagawa, Yuichi Browse this author
Kawashima, Akira Browse this author
Fushimi, Koji Browse this author →KAKEN DB
Morisaki, Yasuhiro Browse this author
Chujo, Yoshiki Browse this author
Hasegawa, Yasuchika Browse this author →KAKEN DB
Keywords: quantum dot
chiral molecules
surface protection
circular dechroism
Issue Date: 11-May-2015
Publisher: フォトポリマー学会
Journal Title: Journal of Photopolymer Science and Technology
Volume: 28
Issue: 2
Start Page: 255
End Page: 260
Publisher DOI: 10.2494/photopolymer.28.255
Abstract: Active surface of luminescent silicon nanoparticles was terminated by the photochemical reaction of chiral molecules, (S)- or (R)-5-allyl-2-oxabicyclo[3,3,0]oct-8-ene ((S) - or (R) - AOBE) under UV light. The particle size and shapes were characterized using Transmission Electron Microscope (TEM). The average particle size was found to be 5.7 nm. Circular dichroism (CD) signals with large dissymmetry factors from silicon nanoparticles terminated with (S) - and (R) - AOBE were observed at around 300 nm and 500 nm, which were much larger than those of (S)- and (R)-AOBE molecules. The silicon nanoparticles covered with (S)- or (R)-AOBE provided red luminescence based on the indirect electronic transition. Effective circular polarized luminescence (CPL) was not observed from indirect transition band.
Type: article
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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