Multi-curve fitting analysis of temperature-dependent I-V curves of poly-hexathi

2020-01-30 11:56:46

self curves fitting dependent hexathienylphen

责任者: Araki, K.;Endo, H.;Tanaka, H.;Ogawa, T. 单位: Inst. for Molecular Sci., Okazaki Nat. Res. Inst., Aichi, Japan 来源出处: Japanese Journal of Applied Physics, Part 2 (Letters)(Jpn. J. Appl. Phys. 2, Lett. (Japan)),2004/05/01,43(5A):634-6 摘要: Stable junctions were obtained by preparing polymeric hexathienylphenanthroline wires coordinated to [RuII(bpy)2](PF6)2 groups directly in Au electrode nanogaps by electropolymerization. Reproducible nonlinear and strongly temperature-dependent curves, similar to those found for self-assembled π-conjugated dithiols and diisocyanides inside nanoholes, were obtained rather than a tunneling behavior commonly found in alkanethiol self-assembled monolayers. This is the first time that a consistent series of data are collected for a polymer and interpreted based on a multicurve fitting method, based on the linear combination of tunneling, Frenkel-Poole and hopping mechanisms, indicating that various independent conduction pathways are present in the junctions 关键词: curve fitting;gold;monolayers;nanowires;polymerisation;polymers;scanning electron microscopy;self-assembly;tunnelling;multicurve fitting analysis;temperature-dependent I-V curves;poly-hexathienylphenanthroline bridged nanogap electrodes;electropolymerization;pi conjugated dithiols;diisocyanides;nanoholes;tunneling;alkanethiol self-assembled monolayers;polymer;Frenkel-Poole method;hopping mechanisms;Au