The Effect of doping by Fe and Sn on the physical properties of Nickel. oxide thin films prepared by Spin coating
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Abstract
We have prepared pure nickel oxide films and those codoped Which are With iron and tin on glass substrate using spin coating . (XRD) measurement shows that the films prepared with Molars concentration (0.3M) and annealing temperature (573 k) were found to be Amorphous structure and annealing at (723k) temperature, change into polycrystalline. the optical properties show ,they transport records value as between (72-85)% for all films. The energy gap decreases with the increase of doping while Urbach energy increases with doping . The electrical properties were studied from variation of conductivity and increase with temperature range (308-373) 0k, while the activation energy decrease with temperature. The type of majority carriers of films were found using Hall effect measurements. It has also been found that the Nickel oxide is P-type while the Tin oxide is N-type. The carries concentration decreases with the increase of doping while Mobility, coefficient Hall and resistance increases with doping
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