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Table 2

Ssolar absorptance values of Mn-doped a−Fe2O3 films deposited on titanium substrate at 600 °C by ultrasonic spray pyrolysis, as a function of the concentrationof Fe and Mn.

Sample [Fe] mol/lt [Mn] mol/lt Solar absorptance
(a) 0.0015 0.0035 0.943
(b) 0.025 0.0025 0.771
(c) 0.02 0.003 0.697
(d) 0.015 0.0035 0.755
(e) 0.01 0.004 0.692
(f) 0.05 0.0045 0.722

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