Organic-based molecular switches for molecular electronics

ABSTRACTTripodal ligand complexes of copper salts are described that display redoxdependent exciton coupled circular dichroism spectra. Significant spectral amplitude is observed at 400 nm in both solution and microcrystalline films. The synthesis and characterization of two new ligands and the preliminary characterization of the circular dichroism properties of their copper complexes is reported. The results constitute a significant step toward the development of molecules that can be used as on/off molecular switches.

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Molecular electronics based on self-assembled monolayers

10.1093/oxfordhb/9780199533060.013.9 ◽

2017 ◽

Author(s):

D. Vuillaume

Keyword(s):

Molecular Electronics ◽

Molecular Switches ◽

Self Assembled Monolayers ◽

Resonant Tunnelling ◽

Cell Architecture ◽

Molecular Transistors ◽

Assembled Monolayers ◽

Self Assembled ◽

Conformational Memory ◽

Simple Molecules

This article considers molecular electronics based on self-assembled monolayers. It begins with a brief overview of the nanofabrication of molecular devices, followed by a discussion of the electronic properties of several basic devices, from simple molecules such as molecular tunnel junctions and molecular semiconducting wires, to more complex ones such as molecular rectifying diodes. It also describes molecular switches and memories, focusing on three approaches called ‘conformational memory’, ‘charge-based memory’ and ‘RTD-based memory’ (RTD is resonant tunnelling diode). It shows that memory can be implemented from resonant tunnelling diodes following cell architecture already used for semiconductor devices. The article concludes with a review of molecular transistors.

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From Electride-like Super Alkali Earth Atom to Superalkalide or Superalkali Electride: M(HF)3M (M = Na or Li) as Field-Induced Excellent Inorganic NLO Molecular Switches

Journal of Materials Chemistry C ◽

10.1039/d1tc03337a ◽

2021 ◽

Author(s):

Yin-Feng Wang ◽

Jia-Jun Wang ◽

Jia Li ◽

Xue-Xia Liu ◽

Zhijun Wang ◽

...

Keyword(s):

Molecular Electronics ◽

Molecular Switches ◽

Molecular Switch ◽

Excess Electron ◽

Alkali Earth ◽

Electron Compounds

Exploring novel molecular switch is an ongoing hot issue in molecular electronics. Alkalide and electride are two typical representatives of excess electron compounds. It was found that M(HF)3M (M =...

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Transmission Electron Microscopy of Evaporated Perylene Thin Films

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100135289 ◽

1990 ◽

Vol 48 (2) ◽

pp. 336-337

Author(s):

C. Ewins ◽

J.R. Fryer

Keyword(s):

Electron Microscopy ◽

Thin Films ◽

Transmission Electron Microscopy ◽

Molecular Electronics ◽

High Vacuum ◽

Amorphous Layer ◽

Electric Heater ◽

Transmission Electron ◽

Polycyclic Aromatic

The preparation of thin films of organic molecules is currently receiving much attention because of the need to produce good quality thin films for molecular electronics. We have produced thin films of the polycyclic aromatic, perylene C10H12 by evaporation under high vacuum onto a potassium chloride (KCl) substrate. The role of substrate temperature in determining the morphology and crystallography of the films was then investigated by transmission electron microscopy (TEM).The substrate studied was the (001) face of a freshly cleaved crystal of KCl. The temperature of the KCl was controlled by an electric heater or a cold finger. The KCl was heated to 200°C under a vacuum of 10-6 torr and allowed to cool to the desired temperature. The perylene was then evaporated over a period of one minute from a molybdenum boat at a distance of 10cm from the KCl. The perylene thin film was then backed with an amorphous layer of carbon and floated onto copper microscope grids.

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Faculty Opinions recommendation of ParB-type DNA Segregation Proteins Are CTP-Dependent Molecular Switches.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.737070537.793569216 ◽

2020 ◽

Author(s):

Erin Goley

Keyword(s):

Molecular Switches ◽

Dna Segregation

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Approaches to Orthogonally Fused Conducting Polymers for Molecular Electronics

10.21236/ada236253 ◽

1991 ◽

Author(s):

James M. Tour ◽

Ruilian Wu ◽

Jeffry S. Schumm

Keyword(s):

Conducting Polymers ◽

Molecular Electronics

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Thermoelectric properties of B12N12 molecule

Current Nanoscience ◽

10.2174/1573413716666191230155900 ◽

2019 ◽

Vol 16 ◽

Author(s):

Mohammad Reza Niazian ◽

Laleh Farhang Matin ◽

Mojtaba Yaghobi ◽

Amir Ali Masoudi

Keyword(s):

Molecular Electronics ◽

Thermoelectric Properties ◽

Electronic Devices ◽

Thermal Conductance ◽

Wide Band ◽

Oscillatory Behavior ◽

Mapping Technique ◽

Junction Points ◽

Inelastic Behaviour ◽

New Generation

Background: Recently, molecular electronics have attracted the attention of many researchers, both theoretically and applied electronics.Nanostructures have significant thermal properties, which is why they are considered as good options for designing a new generation of integrated electronic devices. Objective: In this paper, the focus is on the thermoelectric properties of the molecular junction points with the electrodes. Also, the influence of the number of atom contacts was investigated on the thermoelectric properties of molecule located between two electrodes metallic.Therefore, the thermoelectric characteristics of the B12 N12 molecule are investigated. Methods: For this purpose, the Green’s function theory as well as mapping technique approach with the wide-band approximation and also the inelastic behaviour is considered for the electron-phonon interactions. Results & Conclusion: Results & Conclusion:It is observed that the largest values of the total part of conductance as well as its elastic (G(e,n)max) depends on the number of atom contacts and are arranged as: G(e,1)max>G(e,4)max>G(e,6)max. Furthermore, the largest values of the electronic thermal conductance, i.e. Kpmax is seen to be in the order of K(p,4)max < K(p,1)max < K(p,6)max that the number of main peaks increases in four-atom contacts at (E<Ef). Furthermore, it is represented that the thermal conductance shows an oscillatory behavior which is significantly affected by the number of atom contacts.

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