Table 2: Percentage ratios of the Nb atoms to O contents of the Nb oxides deposited on a silicon substrate at different deposition powers.

Sample #

Atomic %

Weight %

Power (W)

Oxygen (K)

Nb (L)

Oxygen

Nb

200

89.83

10.17

60.33

39.67

225

89.9

10.1

60.51

39.49

250

88.08

11.92

56.01

43.99

275

76.39

23.61

35.78

64.22

300

87.49

12.51

54.63

45.37