scholarly journals Electronic transport properties of electrically doped cytosine‐based optical molecular switch with single‐wall carbon nanotube electrodes

2019 ◽  
Vol 13 (5) ◽  
pp. 484-492
Author(s):  
Debarati Dey ◽  
Pradipta Roy ◽  
Debashis De
Keyword(s):  
Carbon Nanotube ◽  
Transport Properties ◽  
Electronic Transport ◽  
Molecular Switch ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Electronic Transport Properties

THE ELECTRONIC TRANSPORT PROPERTIES IN NAPHTHOPYRAN-BASED OPTICAL MOLECULAR SWITCH WITH CARBON NANOTUBE ELECTRODES

2013 ◽  
Vol 12 (07) ◽  
pp. 1350068
Author(s):  
CAI-JUAN XIA ◽  
DE-HUA ZHANG ◽  
YING-TANG ZHANG
Keyword(s):  
Carbon Nanotube ◽  
Transport Properties ◽  
Electronic Transport ◽  
Density Functional ◽  
Molecular Switch ◽  
Functional Theory ◽  
Single Walled Carbon Nanotube ◽  
Electronic Transport Properties ◽  
Switching Characteristics ◽  
Theoretical Results

By applying nonequilibrium Green's function (NEGF) formalism combined first-principles density functional theory (DFT), we investigate the electronic transport properties of optical molecular switch based on the naphthopyran molecule with two different single-walled carbon nanotube (SWCNT) electrodes. The molecule that comprises the switch can convert between the closed and open forms upon photoexcitation. Theoretical results show that these two forms exhibit very different conductance properties both in armchair and zigzag junction, which can realize the on and off states of the molecular switch. Meantime, the chirality of the SWCNT electrodes strongly affects the switching characteristics of the molecular junctions. The maximum value of on–off ratio can reach 292 at 1.6 V for the switch with zigzag SWCNT electrodes.

Transport properties of a potassium-doped single-wall carbon nanotube rope

2000 ◽  
Vol 61 (7) ◽  
pp. 4526-4529 ◽  
Author(s):  
R. S. Lee ◽  
H. J. Kim ◽  
J. E. Fischer ◽  
J. Lefebvre ◽  
M. Radosavljević ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Transport Properties ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon
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