scholarly journals Electronic properties of mesoscopic graphene structures: Charge confinement and control of spin and charge transport

2011 ◽  
Vol 503 (2-3) ◽  
pp. 77-114 ◽  
Author(s):  
A.V. Rozhkov ◽  
G. Giavaras ◽  
Yury P. Bliokh ◽  
Valentin Freilikher ◽  
Franco Nori
Keyword(s):  
Charge Transport ◽  
Electronic Properties ◽  
And Control ◽  
Graphene Structures

scholarly journals Mechanical single-molecule potentiometers with large switching factors from ortho-pentaphenylene foldamers

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jinshi Li ◽  
Pingchuan Shen ◽  
Shijie Zhen ◽  
Chun Tang ◽  
Yiling Ye ◽  
...  
Keyword(s):  
Charge Transport ◽  
Single Molecule ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Helical Structures ◽  
Anchoring Groups ◽  
Molecular Conductance ◽  
And Control ◽  
Helical Molecules ◽  
Shed Light

AbstractMolecular potentiometers that can indicate displacement-conductance relationship, and predict and control molecular conductance are of significant importance but rarely developed. Herein, single-molecule potentiometers are designed based on ortho-pentaphenylene. The ortho-pentaphenylene derivatives with anchoring groups adopt multiple folded conformers and undergo conformational interconversion in solutions. Solvent-sensitive multiple conductance originating from different conformers is recorded by scanning tunneling microscopy break junction technique. These pseudo-elastic folded molecules can be stretched and compressed by mechanical force along with a variable conductance by up to two orders of magnitude, providing an impressively higher switching factor (114) than the reported values (ca. 1~25). The multichannel conductance governed by through-space and through-bond conducting pathways is rationalized as the charge transport mechanism for the folded ortho-pentaphenylene derivatives. These findings shed light on exploring robust single-molecule potentiometers based on helical structures, and are conducive to fundamental understanding of charge transport in higher-order helical molecules.

Fused donor–acceptor π-conjugated diazatruxenones: synthesis and electronic properties

2018 ◽  
Vol 5 (11) ◽  
pp. 1748-1755 ◽  
Author(s):  
Angela Benito-Hernández ◽  
Mardia T. El-Sayed ◽  
Juan T. López Navarrete ◽  
M. Carmen Ruiz Delgado ◽  
Berta Gómez-Lor
Keyword(s):  
Charge Transport ◽  
Electronic Properties ◽  
Acceptor Molecule ◽  
Promising Candidate ◽  
Donor Acceptor

A promising candidate for ambipolar charge transport: a disk-like platform, diazatruxenone, as a novel, compact and planar donor–acceptor molecule.

Growth direction dependent separate-channel charge transport in organic weak charge-transfer co-crystal of anthracene-DTTCNQ

2022 ◽  
Author(s):  
Hui Jiang ◽  
Jun Ye ◽  
Peng Hu ◽  
Shengli Zhu ◽  
Yanqin Liang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Charge Transport ◽  
Electronic Properties ◽  
Single Crystals ◽  
Organic Semiconductors ◽  
Crystal Engineering ◽  
Molecular Crystal ◽  
Growth Direction ◽  
Weak Charge ◽  
Separate Channel

Co-crystallization is an efficient way of molecular crystal engineering to tune the electronic properties of organic semiconductors. In this work, we synthesized anthracene-4,8-bis(dicyanomethylene)4,8-dihydrobenzo[1,2-b:4,5-b’]-dithiophene (DTTCNQ) single crystals as a template to...

scholarly journals Synthesis of Dimethyl-Substituted Polyviologen and Control of Charge Transport in Electrodes for High-Resolution Electrochromic Displays

Polymers ◽  
2017 ◽  
Vol 9 (12) ◽  
pp. 86 ◽  
Author(s):  
Kan Sato ◽  
Ryusuke Mizukami ◽  
Takahiro Mizuma ◽  
Hiroyuki Nishide ◽  
Kenichi Oyaizu
Keyword(s):  
High Resolution ◽  
Charge Transport ◽  
And Control

Film-depth-dependent crystallinity for light transmission and charge transport in semitransparent organic solar cells

2020 ◽  
Vol 8 (1) ◽  
pp. 401-411 ◽  
Author(s):  
Tong Xiao ◽  
Jiayu Wang ◽  
Shuting Yang ◽  
Yuanwei Zhu ◽  
Dongfan Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Electronic Properties ◽  
Organic Solar Cells ◽  
Light Transmission ◽  
Optical And Electronic Properties

We realized simultaneously optimized optical and electronic properties in semitransparent organic solar cells by tuning the film-depth-dependent crystallinity distribution.

The electronic properties and control of semiconductor interfaces

1990 ◽  
Vol 31 ◽  
pp. 53-58 ◽  
Author(s):  
J.M. Woodall ◽  
P.D. Kirchner ◽  
J.L. Freeouf ◽  
A.C. Warren
Keyword(s):  
Electronic Properties ◽  
Semiconductor Interfaces ◽  
And Control

Nonreciprocal and Control THz Components Based on Planar Graphene Structures

2018 ◽  
Author(s):  
Victor Dmitriev ◽  
Wagner Castro ◽  
Samara Matos ◽  
Francisco Nobre ◽  
Tiago Oliveira ◽  
...  
Keyword(s):  
And Control ◽  
Graphene Structures ◽  
Planar Graphene

Numerical Simulation on the Electronic Properties in Multilayer Organic Light Emitting Diodes

2012 ◽  
Vol 629 ◽  
pp. 224-228 ◽  
Author(s):  
Kwang Sik Kim ◽  
Young Wook Hwang ◽  
Tae Young Won
Keyword(s):  
Numerical Simulation ◽  
Charge Transport ◽  
Electronic Properties ◽  
Light Emitting Diodes ◽  
Hole Transport ◽  
Organic Light Emitting Diodes ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Light Emitting ◽  
Organic Light

We report our finite element method (FEM) simulation study on the characteristic of the charge transport layer of the multi-layer structure for organic light emitting diodes (OLEDs). The physical model cover all the key physical processes in OLEDs, namely charge injection, transport and recombination, exciton diffusion, transfer and decay for electronic properties. We performed a numerical simulation on a multilayer structure comprising a hole transport layer (HTL), an emission layer (EML), and an electron transport layer (ETL) between both electrodes; anode and cathode. The materials of the HTL is TPD (N, N'-Bis (3- methylphenyl) - N, N'- bis (phenyl) benzidine), and the ETL includes Alq3 (Tris (8- hyroxyquinolinato) aluminium). Here, we investigated the parameters such as recombination rates which influence the efficiency of the charge transport between layers in bilayer OLEDs. We also analyzed a transient response during the turn on period and the carrier transport in accordance with the variation of the injection barrier and applied voltage. In addition, this paper revealed that the effect of the insertion of the EML in bilayer structure.

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