Tunable Self-Assembly and Morphology-Dependent Photoconductivity of a Donor–Acceptor-Structured Diruthenium Complex
journal contributionposted on 2016-12-06, 17:03 authored by Meng-Jia Sun, Xinliang Zhang, Yu-Wu Zhong, Chuanlang Zhan, Jiannian Yao
A donor–acceptor-structured diruthenium complex, 1(PF6)4, that contains an electron-deficient bridging ligand and electron-rich distal diarylamines modified with long aliphatic chains has been synthesized. By varying the solvent environments and assembly conditions, we obtained three different self-assembled nanostructures of 1(PF6)4, including zero-dimensional nanospheres, one-dimensional nanofibers, and thin films with interconnected nanowire networks. These structures were investigated by scanning electron microscopy, transmission electron microscopy, dynamic light scattering, X-ray diffraction, and atomic force microscopy (AFM) analysis. Conductive AFM analysis shows that the nanowire networks exhibit a high conductivity of 0.023 S/cm and an enhanced photoconductivity of 0.59 S/cm under visible light irradiation.