Quantum Dot Modified One-Dimensional C60 Nanorod in Situ Preparation and Photoinduced Charge Transfer

CdSe/CdS/ZnS quantum dot (QD) modified C-60 nanorods were performed by the liquid liquid interfacial precipitation method. Transmission electron microscopy and scanning electron microscopy were used to characterize the hybrid C-60 structure and found that the CdSe/CdS/ZnS QDs were attached on the surface of C-60 nanorods. UV vis absorption spectroscopy, surface photovoltage spectroscopy (SPS), and steady-state and transient spectra photoluminescence (PL) were used to investigate the nanorods' optoelectronic properties. The CdSe/CdS/ZnS QD PL quench, decreasing lifetime, and enhanced SPS response were observed for the hybrid QDs/C-60 nanorod films. The charge transport property of a single C-60 nanorod modified by CdSe/CdS/ZriS QDs was also investigated for photocurrent occurrence. It is considered that the photoinduced charge transfers from CdSe/CdS/ZnS QDs to C-60 nanorods by tunneling through the oleylamine ligand. The hybrid QDs/C-60 nanorod will be a good system for adjusting the interaction and the ability of charge transportation between the QDs and C-60 by ligand exchange. The in situ preparation method for the hybrid QD/C-60 nanorod films has high yield at room temperature.