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yudyan
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2Â¥2013-04-25 09:16:43
wjqmg
ͳæ (СÓÐÃûÆø)
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3Â¥2013-04-25 20:57:56
dz³ªÃ÷Ìì
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4Â¥2013-04-25 22:08:44
dz³ªÃ÷Ìì
гæ (СÓÐÃûÆø)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
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- É¢½ð: 5
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5Â¥2013-04-25 22:09:39
yudyan
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6Â¥2013-05-02 20:23:52
yantingfang
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The LaF3: xmol% Eu3+(x¼1, 3, 5, 8, 10) nanoparticles were prepared by using a modified literature procedure.3In a typical experiment, 0.65 mmol of La2O3and stoichiometric Eu2O3were dissolved in concentrated HNO3firstly by stirring at about 90C, and then 2 ml of methanol was added to form a transparent RE nitrate methanol solution. An aqueous solution of 10.4 mmol of citric acid in 35 ml of deionized water was partially neutralized with 1.5 ml of concentrated NH4OH to a pH of 5.5. ²Î¿¼ÎÄÏ×£ºEnhanced emission of ultra-small-sized LaF3:RE3+(RE=Eu, Tb)nanoparticles through 1,2,4,5-benzenetetracarboxylic acid sensitization ÎÄÏ×µØÖ·£ºhttp://pubs.rsc.org/en/content/articlehtml/2012/nr/c2nr31206a |

7Â¥2014-05-23 16:29:30














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