Inorganic Solar Cells Based on Electrospun ZnO Nanofibrous Networks and Electrodeposited Cu(2)O

The nanostructured ZnO/copper oxide (Cu(2)O) photovoltaic devices based on electrospun ZnO nanofibrous network and electrodeposited Cu(2)O layer have been fabricated. The effects of the pH value of electrodeposition solution and the Cu(2)O layer thickness on the photovoltaic performances have been investigated. It is revealed that the pH value influences the morphology and structure of the Cu(2)O layer and thus the device performances. The Cu(2)O layer with an appropriate thickness benefits to charge transfer and light absorption. The device prepared at the optimal conditions shows the lowest recombination rate and exhibits a power conversion efficiency of ~0.77 %. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s11671-015-1169-8) contains supplementary material, which is available to authorized users.