Effect of geometrical torsion on the rectification properties of diblock conjugated molecular diodes

被引：6

作者：

Cui, Bin ^{[1
]}

Zhao, Wenkai ^{[1
]}

Wang, Hui ^{[1
]}

Zhao, Jingfen ^{[1
]}

Zhao, He ^{[1
]}

Li, Dongmei ^{[1
]}

Jiang, Xiaohui ^{[1
,2
]}

Zhao, Peng ^{[3
]}

Liu, Desheng ^{[1
,2
]}

机构：

[1] Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

[2] Jining Univ, Dept Phys, Qufu 273155, Peoples R China

[3] Univ Jinan, Sch Phys & Technol, Jinan 250022, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2014年 / 116卷 / 07期

基金：

中国国家自然科学基金;

关键词：

ELECTRONIC TRANSPORT-PROPERTIES; SELF-ASSEMBLED MONOLAYERS; CONDUCTANCE; DERIVATIVES;

D O I：

10.1063/1.4893365

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We model several Au/conjugated molecule/Au junctions in the presence of molecular geometrical torsions. A rectification ratio of around 10 in the twisty diphenyldipyrimidinyl system is obtained, which is in good agreement with experiment. Deeper insight into the rectification mechanism of the conjugated molecular diodes is presented on the basis of simulations in a set of simpler but similar junctions. The rectification effect ( the ratio) is significantly improved with increasing the molecular twist, while the conductance is reduced accordingly. Our results suggest that the rectification can be enhanced by the geometrical-torsion-induced reduction in the conjugation length of organic molecules. (C) 2014 AIP Publishing LLC.

引用

页数：6

共 50 条

[21] The effects of contact configurations on the rectification of dipyrimidinyl-diphenyl diblock molecular junctions
Zhang Guang-Ping
Hu Gui-Chao
Li Zong-Liang
Wang Chuan-Kui
CHINESE PHYSICS B, 2011, 20 (12)
[22] The effect of constitutional and conformational isomerization on the electrical properties of diblock molecular diode
El-Hendawy, Morad M.
El-Nahas, Ahmed M.
Awad, Mohamed K.
ORGANIC ELECTRONICS, 2011, 12 (06) : 1080 - 1092
[23] Geometrical study of nanoscale field effect diodes
Manavizadeh, Negin
Raissi, Farshid
Soleimani, Ebrahim Asl
Pourfath, Mahdi
SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 2012, 27 (04)
[24] Modulating hybrid interface states in magnetic molecular junctions by molecular geometrical torsion
Qiu, Shuai
Miao, Yuan-Yuan
Zhang, Guang-Ping
Ren, Jun-Feng
Wang, Chuan-Kui
Hu, Gui-Chao
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2019, 489
[25] Effect of Applied Voltage on the Geometrical and Electronic Structures of Dipyrimidinyl-Diphenyl Diblock as a Molecular Diode: A DFT Study
El-Hendawy, Morad M.
El-Nahas, Ahmed M.
Awad, Mohamed K.
JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (49): : 21728 - 21735
[26] Modulation of Rectification in Diblock Co-oligomer Diodes by Adjusting Anchoring Groups for Both Symmetric and Asymmetric Electrodes
Zhang, Guang-Ping
Hu, Gui-Chao
Song, Yang
Li, Zong-Liang
Wang, Chuan-Kui
JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (41): : 22009 - 22014
[27] Toward a nanoimprinted nanoantenna to perform optical rectification through molecular diodes
C. A. Reynaud
D. Duché
C. M. Ruiz
U. Palanchoke
L. Patrone
J. Le Rouzo
S. Labau
N. Frolet
C. Gourgon
C. Alfonso
A. Charaï
C. Lebouin
J-J. Simon
L. Escoubas
Journal of Nanoparticle Research, 2017, 19
[28] Molecular diodes with rectification ratios exceeding 105 driven by electrostatic interactions
Chen, Xiaoping
Roemer, Max
Yuan, Li
Du, Wei
Thompson, Damien
del Barco, Enrique
Nijhuis, Christian A.
NATURE NANOTECHNOLOGY, 2017, 12 (08) : 797 - 803
[29] Toward a nanoimprinted nanoantenna to perform optical rectification through molecular diodes
Reynaud, C. A.
Duche, D.
Ruiz, C. M.
Palanchoke, U.
Patrone, L.
Le Rouzo, J.
Labau, S.
Frolet, N.
Gourgon, C.
Alfonso, C.
Charai, A.
Lebouin, C.
Simon, J-J.
Escoubas, L.
JOURNAL OF NANOPARTICLE RESEARCH, 2017, 19 (12)
[30] Molecular diodes with rectification ratios exceeding 105 driven by electrostatic interactions
Chen X.
Roemer M.
Yuan L.
Du W.
Thompson D.
Del Barco E.
Nijhuis C.A.
Nature Nanotechnology, 2017, 12 (8) : 797 - 803

← 1 2 3 4 5 →