Interpretation of Stochastic Events in Single-Molecule Measurements of Conductance and Transition Voltage Spectroscopy

2012 ◽  
Vol 134 (18) ◽  
pp. 7958-7962 ◽  
Author(s):  
Ioan Bâldea
Keyword(s):  
Single Molecule ◽  
Stochastic Events ◽  
Transition Voltage ◽  
Transition Voltage Spectroscopy

Electronic transport, transition-voltage spectroscopy, and the Fano effect in single molecule junctions composed of a biphenyl molecule attached to metallic and semiconducting carbon nanotube electrodes

2014 ◽  
Vol 16 (36) ◽  
pp. 19602-19607 ◽  
Author(s):  
Carlos Alberto Brito da Silva Júnior ◽  
José Fernando Pereira Leal ◽  
Vicente Ferrer Pureza Aleixo ◽  
Felipe A. Pinheiro ◽  
Jordan Del Nero
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Single Molecule ◽  
Electronic Transport ◽  
Fano Effect ◽  
Single Molecule Junctions ◽  
Transition Voltage ◽  
Transport Transition ◽  
Transition Voltage Spectroscopy

We investigate electronic transport in semiconductor–molecule–metal junctions consisting of a biphenyl molecule attached to a p-doped semiconductor and metallic carbon nanotubes.

Single Molecule Conductance, Thermopower, and Transition Voltage

Nano Letters ◽  
2013 ◽  
Vol 13 (9) ◽  
pp. 4326-4332 ◽  
Author(s):  
Shaoyin Guo ◽  
Gang Zhou ◽  
Nongjian Tao
Keyword(s):  
Single Molecule ◽  
Transition Voltage

scholarly journals Transition from stochastic events to deterministic ensemble average in electron transfer reactions revealed by single-molecule conductance measurement

2019 ◽  
Vol 116 (9) ◽  
pp. 3407-3412 ◽  
Author(s):  
Yueqi Li ◽  
Hui Wang ◽  
Zixiao Wang ◽  
Yanjun Qiao ◽  
Jens Ulstrup ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Single Molecule ◽  
Electron Transfer Reaction ◽  
Transfer Reactions ◽  
Ensemble Averaging ◽  
Electron Transfer Reactions ◽  
Single Molecule Level ◽  
Individual Reaction ◽  
Stochastic Events ◽  
The Individual

Electron transfer reactions can now be followed at the single-molecule level, but the connection between the microscopic and macroscopic data remains to be understood. By monitoring the conductance of a single molecule, we show that the individual electron transfer reaction events are stochastic and manifested as large conductance fluctuations. The fluctuation probability follows first-order kinetics with potential dependent rate constants described by the Butler–Volmer relation. Ensemble averaging of many individual reaction events leads to a deterministic dependence of the conductance on the external electrochemical potential that follows the Nernst equation. This study discloses a systematic transition from stochastic kinetics of individual reaction events to deterministic thermodynamics of ensemble averages and provides insights into electron transfer processes of small systems, consisting of a single molecule or a small number of molecules.

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