| .Preparation and the Absorption Spectra of Rare Earth Treated Carbon Nanotubes Self-assembled Monolayers[J],42(1):60-62,126 |
| Preparation and the Absorption Spectra of Rare Earth Treated Carbon Nanotubes Self-assembled Monolayers |
| Received:October 31, 2012 Revised:November 19, 2012 |
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| KeyWord:CNTs rare earth functionalization absorption spectra |
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| Abstract: |
| Mixed acid was used to make the functionalization of carbon nanotubes( CNTs) and rare earth( RE) treated CNTs ( CNTs / RE) suspension was prepared. CNTs / RE-self-assembled monolayers ( CNTs / RE-SAM) was fabricated on the single-crystal silicon substrate by a self-assembling process. The testing results of XPS spectra and SEM images indicated that after CNTs was functionalized, it contained hydroxyl, carboxyl groups. The surface treatment effect of CNTs was most obvious when RE concentration was 0 . 3 wt% . From the absorption spectra, we found that CNTs / RE-SAM had absorption in the ultravioletvisible region, its absorption peaks were relatively in the ultraviolet region and the spectral response range of crystalline silicon solar cell wasexpanded. |
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