Abstract
Today's thin film photovoltaic technologies are costly, toxic and rare in the earth's. Hence, in future cost reduction and increased production, using abundantly available non-toxic elements, seem to be the main issues like Cu2ZnSnS4 (CZTS), Cu2ZnSnS4 as an absorber layer material is attracting much attention recently in a heterojunction solar cell. ZnO/Cu2ZnSnS4 p n heterostructure nanorod arrays were fabricated using ZnO nanorod arrays as the template was grown by the hydrothermal method and interpenetrated with CZTS and was studied by using Scanning Electron Mircorscopy (SEM) and High Resolution Transmission Electron Microscopy (HRTEM), which confirm the formation of CZTS nanocrystals (NCs). X-ray diffraction shows clearly the interpenetration of CZTS on ZnO nanorods. The results indicate that the heterostructure nanorod arrays may shed light on new opportunities for nanoscale solar cell.