CuO nanocrystal (NC) films of different grain sizes were synthesized through the oxidation of Cu films deposited by controlling the supersaturation in the deposition chamber. The films were characterized by XRD, HRTEM, AFM and optical absorption measurements. Charge transport through the films was investigated by measuring the grain size dependent D C electrical conductivity at different temperatures. The conductivity increased and activation energy for conduction decreased with increase in the size of the primary grains of the films. The charge transport through the NC films was explained considering the films to be equivalent to films of primary CuO NCs made up of a core in which the charge carriers were confined and a surrounding grain boundary region (shell) through which charge transport was not hindered by any potential barrier, with the shells of the primary particles merged together so that the there was no inter particle spacing.

通过控制沉积室中的过饱和度，通过氧化沉积的Cu膜来合成不同晶粒度的CuO纳米晶体（NC）膜。通过XRD，HRTEM，AFM和光吸收测量来表征膜。通过测量在不同温度下取决于晶粒尺寸的直流电导率，研究了通过薄膜的电荷传输。随着膜初级晶粒尺寸的增加，电导率增加而导电的活化能降低。解释了通过NC薄膜进行的电荷传输，考虑到这些薄膜等效于一次CuO NC的薄膜，该薄膜由限制电荷载流子的核和不受其阻碍的周围晶界区域（壳）组成任何潜在的障碍，