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Luminescent Silicon Nanoparticles Surface-Modified with Chiral Molecules
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 | silicon | 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 |
URI: | http://hdl.handle.net/2115/72428 |
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)
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Submitter: 長谷川 靖哉
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