Self-assembled monolayers（SAMs） of thiol-derivatized porphyrin molecules on Au substrate have attracted extensively interest for use in sensing,optoelectronic devices and molecular electronics.In this paper,tetra-[p...Self-assembled monolayers（SAMs） of thiol-derivatized porphyrin molecules on Au substrate have attracted extensively interest for use in sensing,optoelectronic devices and molecular electronics.In this paper,tetra-[p-（3-mercaptopropyloxy）-phenyl]porphyrin was synthesized and self-assembled with thiol on Au substrate for porphyrin SAMs（PPS 4）.The electrochemical results demonstrated that PPS 4 could form excellent SAMs on gold surface.Self-assembled nanojunctions of PPS 4 were fabricated by using gold nanogap electrodes（gap width：ca.100 nm）.With the light on/off,the nanojunctions showed current high/low as nanometer scaled photo switch.展开更多
基金supported by the funds of the National Natural Science Foundation of China (Nos.21175108 and 21165016)the project of education department of Gansu Province (No. 0928B-02)
文摘Self-assembled monolayers（SAMs） of thiol-derivatized porphyrin molecules on Au substrate have attracted extensively interest for use in sensing,optoelectronic devices and molecular electronics.In this paper,tetra-[p-（3-mercaptopropyloxy）-phenyl]porphyrin was synthesized and self-assembled with thiol on Au substrate for porphyrin SAMs（PPS 4）.The electrochemical results demonstrated that PPS 4 could form excellent SAMs on gold surface.Self-assembled nanojunctions of PPS 4 were fabricated by using gold nanogap electrodes（gap width：ca.100 nm）.With the light on/off,the nanojunctions showed current high/low as nanometer scaled photo switch.
