| 光谱学与光谱分析 |
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| Determination of Distribution and Effective Distribution Coefficient of Cr3+ in LiNbO3 Single Crystals Using UV/Visible Absorption Spectra and ICP |
| XIA Hai-ping, WANG Jin-hao, ZENG Xian-lin, ZHANG Jian-li, ZHANG Xin-min，NIE Qiu-hua |
| Key Laboratory of Photo-Electronic Materials, Ningbo University, Ningbo 315211, China |
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Abstract The LiNbO3 crystals doped with Cr3+ ion (Cr:LN) and co-doped with Cr3+ and Zn ions (Zn:Cr:LN) were grown by the Bridgman method. The absorption coefficient and concentration of Cr3+ in crystals were measured by UV/Visible spectra and inductively coupled plasma (ICP) spectrometry, respectively. The effective distribution coefficients (k) of Cr3+ in the crystals were calculated. The results indicated that the k for Cr: LN crystal decreased from 3.75 to 2.49 as the incorporating concentration of Cr3+ increased from 0.1 to 0.5 mol%; the introduction of ZnO in Cr:LN induced the reduction of k value effectively. However, the k value increased from 1.85 to 2.25 as the incorporating concentration of ZnO increased from 3 to 6 mol%. The variation of the k value was explained by the suppressing effect of ZnO on the incorporation of Cr3+ ions and the distribution of Cr3+ in LN.
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Received: 2003-12-18
Accepted: 2004-05-08
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Corresponding Authors:
XIA Hai-ping
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| Cite this article: |
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XIA Hai-ping,WANG Jin-hao,ZENG Xian-lin, et al. Determination of Distribution and Effective Distribution Coefficient of Cr3+ in LiNbO3 Single Crystals Using UV/Visible Absorption Spectra and ICP [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(06): 960-963.
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https://www.gpxygpfx.com/EN/Y2005/V25/I06/960 |
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