Fig. 3

a XRD diffraction pattern for ZnO-T-PTCDI composite. TEM of composite material of ZnO-T-PTCDI: b low magnification, inset: Selected Area Electron Diffraction Pattern (SAED) and c high resolution. d Energy spectrum analysis of ZnO-T-PTCDI composite. e UV–visible spectra of T-PTCDI and T-PTCDI/ZnO nanorod composites