| 1. |
- Qian, L, et al.
(författare)
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Formation of titanium fulleride studied by x-ray spectroscopies
- 1999
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Ingår i: PHYSICAL REVIEW B-CONDENSED MATTER. - 0163-1829. ; 59:19, s. 12667-12671
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The chemical interaction between titanium and C-60 in coevaporated titanium-fulleride films has been investigated by x-ray photoelectron spectroscopy, (XPS), x-ray absorption spectroscopy (XAS), and x-ray emission spectroscopy. Two titanium-fulleride film
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| 2. |
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| 3. |
- BENBADIS, L, et al.
(författare)
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WORKING GROUP-VII - FOOD-PRODUCTS
- 1995
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Ingår i: MICROBIAL ECOLOGY IN HEALTH AND DISEASE. - 0891-060X. ; 8, s. S43-S44
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 4. |
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| 5. |
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| 6. |
- McGinnis, S, et al.
(författare)
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Use of oxygen-stabilized C-60 films for selective chemical vapor deposition
- 1997
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Ingår i: APPLIED PHYSICS LETTERS. - : AMER INST PHYSICS. ; 70:5
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Thin C-60 films exposed to ultraviolet/visible light in the presence of oxygen were used as a selective mask for tungsten chemical vapor deposition on silicon substrates. An uptake of oxygen in the fullerene films as well as a significant increase in the
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| 7. |
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| 8. |
- Norin, L, et al.
(författare)
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Deposition of transition metal carbide superlattices using C-60 as a carbon source
- 1998
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Ingår i: Applied Physics Letters. ; 73:19, s. 2754-2756
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Tidskriftsartikel (refereegranskat)abstract
- Epitaxial films of TiC and VC can be deposited at low temperatures on Mg(001) substrates by coevaporation of the metals with C-60 in a ultrahigh vacuum system. This process was used to deposit TiC/VC (001) superlattices on MgO(001) at 400 degrees C. The
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| 9. |
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| 10. |
- Norin, L, et al.
(författare)
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On the Existence of Transition-Metal Fullerides: Deposition and Characterization of TixC60
- 1998
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Ingår i: Chemistry of Materials. - : American Chemical Society (ACS). - 0897-4756 .- 1520-5002. ; 10:4, s. 1184-1190
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Tidskriftsartikel (refereegranskat)abstract
- Titanium fulleride films (TixC60) were prepared by coevaporating Ti and C60 onto moderately heated substrates (~100 C) in an ultrahigh vacuum system. The TixC60 films were all amorphous according to X-ray diffraction and exhibited a gray, metallic luster different from the brown color of pristine C60. The compound also appeared to be metallic or semiconducting as no charging was observed in X-ray photoelectron spectroscopy (XPS) in contrast to analyses of pure C60. XPS of the films showed a maximum titanium content of about 5.3-5.5 at. % (Ti~3.5C60). For higher titanium contents, carbide formation was observed. The XPS analyses also showed binding energy shifts and line broadening effects consistent with the formation of chemical bonds between Ti and C60. Raman spectroscopy showed a softening of the Ag(2) mode upon Ti incorporation (-4 cm-1/Ti atom) which is consistent with a partial charge transfer from Ti to C60. The TixC60 films oxidized immediately upon air exposure. However, XPS and Raman spectroscopy show persistent differences from pristine C60 which might indicate that another phase, TixOyC60, is formed upon oxidation.
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