Role of Order in the Mechanism of Charge Transport across Single-Stranded and Double-Stranded DNA Monolayers in Tunnel Junctions

作者：Nipun Kumar Gupta, Edward A. Wilkinson, Senthil Kumar Karuppannan, Lily Bailey, Ayelet Vilan, Ziyu Zhang, Dongchen Qi, Anton Tadich, Eimer Tuite, Andrew R. Pike, James H. R. Tucker, Christian A. Nijhuis · 发表于：Journal of the American Chemical Society · 年份：2021 · DOI：10.1021/jacs.1c09549 · 被引用次数：44 · 研究领域：Molecular Junctions and Nanostructures、Advanced biosensing and bioanalysis techniques、DNA and Nucleic Acid Chemistry

, the length of DNA, and structural order on the mechanism of charge transport. Both the increase in the tunneling distance and the decrease in structural order result in a change in the mechanism of CT from coherent tunneling to incoherent tunneling (hopping). Our results highlight the importance of the interplay between structural order, tunneling distance, and temperature on the CT mechanism across DNA in molecular junctions.