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Inelastic Transport and Low-Bias Rectification in a Single-Molecule Diode
- Inelastic Transport and Low-Bias Rectification in a Single-Molecule Diode
- Hihath, J[Hihath, Joshua]; Bruot, C[Bruot, Christopher]; Nakamura, H[Nakamura, Hisao]; Asai, Y[Asai, Yoshihiro]; Diez-Perez, I[Diez-Perez, Ismael]; Lee, Y[Lee, Youngu]; Yu, LP[Yu, Luping]; Tao, NJ[Tao, Nongjian]
- DGIST Authors
- Lee, Y[Lee, Youngu]
- Issue Date
- ACS Nano, 5(10), 8331-8339
- Article Type
- Anti-Symmetric; Behavioral Research; Chemistry; Distillation; Elastic Transmissions; Elasticity; Electric Conductivity; Electric Rectifiers; Electrical Equipment; Electrical Equipment and Supplies; Electrode; Electrodes; Electron; Electron-Phonon Interactions; Electron Tunneling; Electrons; Equipment Design; First-Principles Calculation; IETS; Inelastic Electron Tunneling; Inelastic Electron Tunneling Spectroscopy; Low Bias; Low Temperatures; Molecular-Scale Devices; Molecular Electronics; Molecules; Phonon; Phonons; Pyrimidine; Pyrimidine Derivative; Pyrimidines; Rectification Behavior; Reverse Bias; Scanning Tunneling Microscopy; Single-Molecule; Single-Molecule Conductance; Single-Molecule Junctions; Single Molecule Diodes; Spectroscopy; STM-Break Junction; Sulfhydryl Compounds; Temperature; Thiol Derivative; Transport Behavior; Transport Mechanism; Transport Pathways; Zero Bias
- Designing, controlling, and understanding rectification behavior in molecular-scale devices has been a goal of the molecular electronics community for many years. Here we study the transport behavior of a single molecule diode, and its nonrectifying, symmetric counterpart at low temperatures, and at both low and high biases to help elucidate the electron-phonon interactions and transport mechanisms in the rectifying system. We find that the onset of current rectification occurs at low biases, indicating a significant change in the elastic transport pathway. However, the peaks in the inelastic electron tunneling (IET) spectrum are antisymmetric about zero bias and show no significant changes in energy or intensity in the forward or reverse bias directions, indicating that despite the change in the elastic transmission probability there is little impact on the inelastic pathway. These results agree with first principles calculations performed to evaluate the IETS, which also allow us to identify which modes are active in the single molecule junction. © 2011 American Chemical Society.
- American Chemical Society
- Related Researcher
Lee, Youn Gu
Organic & Printed Electronics Laboratory(OPEL)
OTF Solar cell; OLED; Printed Electronics; 유기박막형 태양전지; OLED; Printed Electronics
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- Energy Science and EngineeringOrganic & Printed Electronics Laboratory(OPEL)1. Journal Articles
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