List of Figures
Figure 2.1 - Schematic of pre-deposited CVD growth substrate (not to scale).16
Figure 2.2 - Bank of mass flow controllers and water bubbler.............................17
Figure 2.3 - Schematic (a) and photograph (b) of the pre-deposited catalyst
CVD system...............................................................................................................................18
Figure 2.4 - Growth height as a function of water vapor content.........................20
Figure 2.5 - Water-Assisted Pre-Deposited Catalyst CNTs......................................21
Figure 2.6 - Continuous pump, xylene∕ferrocene mixture, and mass flow
controllers for vapor-phase CVD......................................................................................24
Figure 2.7 - Photographs of the coaxial gas∕liquid delivery (a), evaporator cap
(b) and its seat (c), and schematic of gas flow around evaporator (d)...............27
Figure 2.8 - Schematic (a) and image (b) of the vapor-phase CVD system........28
Figure 2.9 - Schematic of vapor-phase CNT thickness as a function of growth
height [44]................................................................................................................................30
Figure 2.10 - Photograph of A-CNTs grown via vapor-phase CVD........................30
Figure 2.11 - TEM images of the "top” (a,b), "middle" (c,d), and "bottom" (e,f)
of xylene∕ferrocene A-CNTs...............................................................................................31
Figure 2.12 - SEM images of the "top" (a,b), "middle" (c,d), and "bottom" (e,ŋ of
xylene∕ferrocene A-CNTs....................................................................................................32
Figure 3.1 - Molecular structure of PDMS [47]............................................................36
Figure 3.2 - SEM image of poor alignment in pre-deposited catalyst composite.
......................................................................................................................................................39
Figure 3.3 - SEM image of the good polymer∕CNT physical interaction and CNT
alignment for vapor-phase A-CNT/PDMS composites..............................................40
Figure 3.4 - Schematic of axial dynamic compression on the A-CNT composites.
......................................................................................................................................................42