Voltage-Dependent Barrier Height of Electron Transport through Iron Porphyrin Molecular Junctions

• Published in: Journal of physical chemistry. C Vol. 125; no. 13
• Main Authors: Nawarat, Poomirat, Beach, Kory, Meunier, Vincent, Terrones, Humberto, Wang, Gwo-Ching, Lewis, Kim Michelle
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 29.03.2021
• Subjects: charge transport; electrodes; gold; INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; molecules; physical and chemical processes

Electron transport through iron porphyrin (FeP) molecules self-assembled on a gold (Au) substrate was investigated using conductive atomic force microscopy (AFM) to measure current–voltage (I–V) characteristics. In the direct tunneling region (|V| ≤ 0.1 V), the Simmons model was used to characterize...