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アクセス権	open access
URI	https://hdl.handle.net/2115/45542
タイトル	Electroabsorption spectra of PbSe nanocrystal quantum dots
著者	Liu, Xiaoming ; Iimori, Toshifumi ; Ohshima, Ruriko ; Nakabayashi, Takakazu ; Ohta, Nobuhiro
著者名 Liu, Xiaoming
著者名 Iimori, Toshifumi
著者名 Ohshima, Ruriko
著者名 Nakabayashi, Takakazu
著者名 Ohta, Nobuhiro
言語	英語
キーワード	electric moments
	electroabsorption
	excitons
	infrared spectra
	IV-VI semiconductors
	lead compounds
	nanostructured materials
	quantum confined Stark effect
	semiconductor quantum dots
発行日	2011-04-18
出版者	American Institute of Physics
収録物名	Applied Physics Letters
巻(号)	98(16)
ページ	161911
抄録	The quantum-confined Stark effect of PbSe nanocrystal quantum dots (QDs) in a polymer film has been studied for the near-infrared absorption in the region of 1300-1600 nm (corresponding to diameters of 4.0-7.0 nm) by using electric field modulation spectroscopy. Electroabsorption spectra of QDs show the electric-field-induced energy shift in the exciton state, resulting in the spectral broadening given by the second derivative of the absorption spectra. It is shown that the magnitude of the change in electric dipole moment following excitation into the first exciton state increases with an increase in the size of QDs.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Appl. Phys. Lett. 98, 161911 (2011) and may be found at https://dx.doi.org/10.1063/1.3583450
PISSN	0003-6951
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1063/1.3583450

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