Origin of the Fine Structure of Ultraviolet and Visible Spectra of Silicon Nanocolloids in 2-Propanol

Chin. Phys. Lett.

1997, Vol. 14

Issue (11): 873-875 DOI:

Original Articles

Origin of the Fine Structure of Ultraviolet and Visible Spectra of Silicon Nanocolloids in 2-Propanol

ZHU Yong;ZHANG Li-de

Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031

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ZHU Yong, ZHANG Li-de 1997 Chin. Phys. Lett. 14 873-875

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Abstract The origin of the fine structure of ultraviolet and visible absorption spectra of silicon nanocolloids in 2-propanol prepared in Ar atmosphere by a new sputtering method is studied. The fine structure is described by phonon-electron coupling in electron transition of silicon. On the basis of the structure model of Si-Si_4-nO_n(n = 0, 1,2,3,4), an energy relation has been proposed to explain the fine structure. The fine structure indicates strong multiple phonon absorption which depends on that how many oxygen atoms the silicon atom bonds to.

Keywords: 78.40.Fy 82.70.Dd

Published: 01 November 1997

PACS:	78.40.Fy	(Semiconductors)
	82.70.Dd	(Colloids)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1997/V14/I11/0873

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