Resonant Charge Transport in Conjugated Molecular Wires beyond 10 nm Range

• DOI: 10.1021/jacs.6b07416
• Publication Date: 2016-08-23T15:14:19Z
• Authors: Guowen Kuang; Shi-Zhang Chen; Weihua Wang; Tao Lin; Keqiu Chen; Xuesong Shang; Pei Nian Liu; Nian Lin
• Keywords: Molecular wire

Using a scanning tunneling microscope, we measured high-bias conductance of single polyporphyrin molecular wires with lengths from 1.3 to 13 nm. We observed several remarkable transport characteristics, including multiple sharp peaks, conductances as high 20 nS in >10 nm, and nearly length-independent (attenuation <0.001 Å–1). carried out first-principles simulations on myriad metal–molecule–metal junctions. The revealed that the is coherent resonant via delocalized orbital.