scholarly journals Quantum interference in organic solid

2005 ◽  
Vol 13 (16) ◽  
pp. 6033 ◽  
Author(s):  
Aleksander Rebane ◽  
Niklas Christensson ◽  
Mikhail Drobizhev ◽  
Yuriy Stepanenko ◽  
Charles W. Spangler
Keyword(s):  
Quantum Interference ◽  
Organic Solid

Observation of quantum interference in an organic solid

2005 ◽  
Author(s):  
A. Rebane ◽  
N. Christensson ◽  
M. Drobizhev ◽  
Y. Stepanenko ◽  
C.W. Spangler
Keyword(s):  
Quantum Interference ◽  
Organic Solid

Quantum interference between multi photon absorption pathways in organic solid

2007 ◽  
Vol 127 (1) ◽  
pp. 28-33 ◽  
Author(s):  
A. Rebane ◽  
N. Christensson ◽  
M. Drobizhev ◽  
Y. Stepanenko ◽  
C.W. Spangler
Keyword(s):  
Quantum Interference ◽  
Photon Absorption ◽  
Organic Solid ◽  
Absorption Pathways

Multiphoton quantum interference in organic solid

2005 ◽  
Author(s):  
A. Rebane ◽  
N. Christensson ◽  
M. Drobizhev ◽  
Y. Stepanenko ◽  
C. Spangler
Keyword(s):  
Quantum Interference ◽  
Organic Solid

One-electron transistors based on Coulomb blockade and quantum interference

1999 ◽  
Vol 169 (4) ◽  
pp. 471 ◽  
Author(s):  
Z.D. Kvon ◽  
L.V. Litvin ◽  
V.A. Tkachenko ◽  
A.L. Aseev
Keyword(s):  
Coulomb Blockade ◽  
Quantum Interference ◽  
Electron Transistors

Injecting Inter-Layers and the Built-in Potential of Blue Polymer Light-Emitting Diodes

2000 ◽  
Vol 660 ◽  
Author(s):  
Thomas M. Brown ◽  
Ian S. Millard ◽  
David J. Lacey ◽  
Jeremy H. Burroughes ◽  
Richard H. Friend ◽  
...  
Keyword(s):  
Indium Tin Oxide ◽  
Light Emitting Diodes ◽  
Basic Structure ◽  
Thin Layers ◽  
Carrier Injection ◽  
Semiconducting Polymer ◽  
Light Emitting ◽  
Physical Mechanisms ◽  
Organic Solid ◽  
Polymer Light Emitting Diodes

ABSTRACTThe semiconducting-polymer/injecting-electrode heterojunction plays a crucial part in the operation of organic solid state devices. In polymer light-emitting diodes (LEDs), a common fundamental structure employed is Indium-Tin-Oxide/Polymer/Al. However, in order to fabricate efficient devices, alterations to this basic structure have to be carried out. The insertion of thin layers, between the electrodes and the emitting polymer, has been shown to greatly enhance LED performance, although the physical mechanisms underlying this effect remain unclear. Here, we use electro-absorption measurements of the built-in potential to monitor shifts in the barrier height at the electrode/polymer interface. We demonstrate that the main advantage brought about by inter-layers, such as poly(ethylenedioxythiophene)/poly(styrene sulphonic acid) (PEDOT:PSS) at the anode and Ca, LiF and CsF at the cathode, is a marked reduction of the barrier to carrier injection. The electro- absorption results also correlate with the electroluminescent characteristics of the LEDs.

Mechanically-Tunable Quantum Interference in Ferrocene-Based Single-Molecule Junctions

2020 ◽  
Author(s):  
María Camarasa-Gómez ◽  
Daniel Hernangómez-Pérez ◽  
Michael S. Inkpen ◽  
Giacomo Lovat ◽  
E-Dean Fung ◽  
...  
Keyword(s):  
Single Molecule ◽  
Quantum Interference ◽  
Degrees Of Freedom ◽  
Building Blocks ◽  
Ferrocene Derivative ◽  
Single Molecule Junctions ◽  
Molecule Junction ◽  
Single Molecule Junction ◽  
The Impact ◽  
D Orbitals

Ferrocenes are ubiquitous organometallic building blocks that comprise a Fe atom sandwiched between two cyclopentadienyl (Cp) rings that rotate freely at room temperature. Of widespread interest in fundamental studies and real-world applications, they have also attracted<br>some interest as functional elements of molecular-scale devices. Here we investigate the impact of<br>the configurational degrees of freedom of a ferrocene derivative on its single-molecule junction<br>conductance. Measurements indicate that the conductance of the ferrocene derivative, which is<br>suppressed by two orders of magnitude as compared to a fully conjugated analog, can be modulated<br>by altering the junction configuration. Ab initio transport calculations show that the low conductance is a consequence of destructive quantum interference effects that arise from the hybridization of metal-based d-orbitals and the ligand-based π-system. By rotating the Cp rings, the hybridization, and thus the quantum interference, can be mechanically controlled, resulting in a conductance modulation that is seen experimentally.<br>

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