Effects%20of%20Annealing

1
Effects of Annealing

• SEM surface morphology of porous alumina
  substrates sputtered with 20 nm Ni.
• (a) As sputtered smooth surface before annealing.
  
• (b) After annealing at 500oC under H2 for two
  hours.
• The continuous nickel thin film transformed to
  uniformly distributed nano-sized particles.

2
Effects of Annealing (cont.)
(c), (d) CNTs grown without annealing (e) CNTs
grown after annealing