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Effects of Annealing

(a). (b). 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 500 o C under H 2 for two hours.

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Effects of Annealing

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

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