Transport properties of double quantum dots formed by ferrocene units

Guiling Zhang; Dong Li; Yan Shang; Hui Zhang; Miao Sun; Bo Liu; Zesheng Li

doi:10.1021/jp1092064

Transport properties of double quantum dots formed by ferrocene units

Guiling Zhang^*
, Dong Li
, Yan Shang
, Hui Zhang
, Miao Sun
, Bo Liu
, Zesheng Li

^*此作品的通讯作者

Harbin University of Science and Technology
Jilin University

科研成果: 期刊稿件 › 文章 › 同行评审

7 引用（Scopus）

摘要

Combining nonequilibrium Green's function technique with density functional theory, the transport properties of a series of double quantum dots formed by ferrocene dimers with saturated carbon bridges and saturated silicon bridges, [Fc?(CH₂)_n]₂ and [Fc?(SiH₂) _n]₂ (n = 1,2,3), were comparatively studied. We have found that the type and the length of the bridge group between two adjacent ferrocene units plays an important role in governing the transport property. The negative differential resistance is enhanced with the lengthening of the space linker, i.e., the NDR magnitude follows the sequence of [Fc?(CH₂) ₃]₂ > [Fc?(CH₂)₂]₂ > [Fc?CH₂]₂ and [Fc?(SiH₂)₃] ₂ > [Fc?(SiH₂)₂]₂ > [Fc?SiH₂]₂. For the short bridged systems (n = 1,2), the conductivity of molecules with the carbon linkage is higher than that with the silicon linkage, that is, [Fc?CH₂]₂ > [Fc?SiH ₂]₂ and [Fc?(CH₂)₂]₂ > [Fc?(SiH₂)₂]₂. In addition, [Fc?SiH ₂] presents a rectifier effect. The effect of the bridge on the transport property could be interpreted from the bonding, the molecular level state, the transmission spectrum, and the density of states.

源语言	英语
页（从-至）	5257-5264
页数	8
期刊	Journal of Physical Chemistry C
卷	115
期	13
DOI	https://doi.org/10.1021/jp1092064
出版状态	已出版 - 7 4月 2011
已对外发布	是

访问文件

10.1021/jp1092064

其它文件与链接

链接到 Scopus 的出版物

引用此

@article{2d7a457768dd41d58d2de01a791cf381,

title = "Transport properties of double quantum dots formed by ferrocene units",

abstract = "Combining nonequilibrium Green's function technique with density functional theory, the transport properties of a series of double quantum dots formed by ferrocene dimers with saturated carbon bridges and saturated silicon bridges, [Fc?(CH2)n]2 and [Fc?(SiH2) n]2 (n = 1,2,3), were comparatively studied. We have found that the type and the length of the bridge group between two adjacent ferrocene units plays an important role in governing the transport property. The negative differential resistance is enhanced with the lengthening of the space linker, i.e., the NDR magnitude follows the sequence of [Fc?(CH2) 3]2 > [Fc?(CH2)2]2 > [Fc?CH2]2 and [Fc?(SiH2)3] 2 > [Fc?(SiH2)2]2 > [Fc?SiH2]2. For the short bridged systems (n = 1,2), the conductivity of molecules with the carbon linkage is higher than that with the silicon linkage, that is, [Fc?CH2]2 > [Fc?SiH 2]2 and [Fc?(CH2)2]2 > [Fc?(SiH2)2]2. In addition, [Fc?SiH 2] presents a rectifier effect. The effect of the bridge on the transport property could be interpreted from the bonding, the molecular level state, the transmission spectrum, and the density of states.",

author = "Guiling Zhang and Dong Li and Yan Shang and Hui Zhang and Miao Sun and Bo Liu and Zesheng Li",

year = "2011",

month = apr,

day = "7",

doi = "10.1021/jp1092064",

language = "English",

volume = "115",

pages = "5257--5264",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

number = "13",

}

TY - JOUR

T1 - Transport properties of double quantum dots formed by ferrocene units

AU - Zhang, Guiling

AU - Li, Dong

AU - Shang, Yan

AU - Zhang, Hui

AU - Sun, Miao

AU - Liu, Bo

AU - Li, Zesheng

PY - 2011/4/7

Y1 - 2011/4/7

N2 - Combining nonequilibrium Green's function technique with density functional theory, the transport properties of a series of double quantum dots formed by ferrocene dimers with saturated carbon bridges and saturated silicon bridges, [Fc?(CH2)n]2 and [Fc?(SiH2) n]2 (n = 1,2,3), were comparatively studied. We have found that the type and the length of the bridge group between two adjacent ferrocene units plays an important role in governing the transport property. The negative differential resistance is enhanced with the lengthening of the space linker, i.e., the NDR magnitude follows the sequence of [Fc?(CH2) 3]2 > [Fc?(CH2)2]2 > [Fc?CH2]2 and [Fc?(SiH2)3] 2 > [Fc?(SiH2)2]2 > [Fc?SiH2]2. For the short bridged systems (n = 1,2), the conductivity of molecules with the carbon linkage is higher than that with the silicon linkage, that is, [Fc?CH2]2 > [Fc?SiH 2]2 and [Fc?(CH2)2]2 > [Fc?(SiH2)2]2. In addition, [Fc?SiH 2] presents a rectifier effect. The effect of the bridge on the transport property could be interpreted from the bonding, the molecular level state, the transmission spectrum, and the density of states.

AB - Combining nonequilibrium Green's function technique with density functional theory, the transport properties of a series of double quantum dots formed by ferrocene dimers with saturated carbon bridges and saturated silicon bridges, [Fc?(CH2)n]2 and [Fc?(SiH2) n]2 (n = 1,2,3), were comparatively studied. We have found that the type and the length of the bridge group between two adjacent ferrocene units plays an important role in governing the transport property. The negative differential resistance is enhanced with the lengthening of the space linker, i.e., the NDR magnitude follows the sequence of [Fc?(CH2) 3]2 > [Fc?(CH2)2]2 > [Fc?CH2]2 and [Fc?(SiH2)3] 2 > [Fc?(SiH2)2]2 > [Fc?SiH2]2. For the short bridged systems (n = 1,2), the conductivity of molecules with the carbon linkage is higher than that with the silicon linkage, that is, [Fc?CH2]2 > [Fc?SiH 2]2 and [Fc?(CH2)2]2 > [Fc?(SiH2)2]2. In addition, [Fc?SiH 2] presents a rectifier effect. The effect of the bridge on the transport property could be interpreted from the bonding, the molecular level state, the transmission spectrum, and the density of states.

UR - https://www.scopus.com/pages/publications/79953696282

U2 - 10.1021/jp1092064

DO - 10.1021/jp1092064

M3 - Article

AN - SCOPUS:79953696282

SN - 1932-7447

VL - 115

SP - 5257

EP - 5264

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 13

ER -

Transport properties of double quantum dots formed by ferrocene units

摘要

访问文件

其它文件与链接

指纹

引用此