Dynamical study on charge injection and transport in a metal/polythiophene/ metal structure

Dong Mei Li; Xiao Jing Liu; Yuan Li; Hai Hong Li; Gui Chao Hu; Kun Gao; De Sheng Liu; Shi Jie Xie

doi:10.1088/1674-1056/17/8/050

Dynamical study on charge injection and transport in a metal/polythiophene/ metal structure

Dong Mei Li, Xiao Jing Liu, Yuan Li, Hai Hong Li, Gui Chao Hu, Kun Gao, De Sheng Liu^*, Shi Jie Xie

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The dynamical process of charge injection from metal electrode to a nondegenerate polymer in a metal/polythiophene (PT)/metal structure has been investigated by using a nonadiabatic dynamic approach. It is found that the injected charges form wave packets due to the strong electron-lattice interaction in PT. We demonstrate that the dynamical formation of the wave packet sensitively depends on the strength of applied voltage, the electric field, and the contact between PT and electrode. At a strength of the electric field more than 3.0 × 10⁴ V/cm, the carriers can be ejected from the PT into the right electrode. At an electric field more than 3.0 × 10⁵ V/cm, the wave packet cannot form while it moves rapidly to the right PT/metal interface. It is shown that the ejected quantity of charge is noninteger.

Original language	English (US)
Pages (from-to)	3067-3076
Number of pages	10
Journal	Chinese Physics B
Volume	17
Issue number	8
DOIs	https://doi.org/10.1088/1674-1056/17/8/050
State	Published - Aug 1 2008
Externally published	Yes

Keywords

Carriers transport
Electron-phonon interactions
Metal/polythiophene/metal structure
Wave packet

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1088/1674-1056/17/8/050

Cite this

@article{345c97630c624f968a78bde56ce8566e,

title = "Dynamical study on charge injection and transport in a metal/polythiophene/ metal structure",

abstract = "The dynamical process of charge injection from metal electrode to a nondegenerate polymer in a metal/polythiophene (PT)/metal structure has been investigated by using a nonadiabatic dynamic approach. It is found that the injected charges form wave packets due to the strong electron-lattice interaction in PT. We demonstrate that the dynamical formation of the wave packet sensitively depends on the strength of applied voltage, the electric field, and the contact between PT and electrode. At a strength of the electric field more than 3.0 × 104 V/cm, the carriers can be ejected from the PT into the right electrode. At an electric field more than 3.0 × 105 V/cm, the wave packet cannot form while it moves rapidly to the right PT/metal interface. It is shown that the ejected quantity of charge is noninteger.",

keywords = "Carriers transport, Electron-phonon interactions, Metal/polythiophene/metal structure, Wave packet",

author = "Li, {Dong Mei} and Liu, {Xiao Jing} and Yuan Li and Li, {Hai Hong} and Hu, {Gui Chao} and Kun Gao and Liu, {De Sheng} and Xie, {Shi Jie}",

year = "2008",

month = aug,

day = "1",

doi = "10.1088/1674-1056/17/8/050",

language = "English (US)",

volume = "17",

pages = "3067--3076",

journal = "Chinese Physics B",

issn = "1674-1056",

publisher = "IOP Publishing",

number = "8",

}

TY - JOUR

T1 - Dynamical study on charge injection and transport in a metal/polythiophene/ metal structure

AU - Li, Dong Mei

AU - Liu, Xiao Jing

AU - Li, Yuan

AU - Li, Hai Hong

AU - Hu, Gui Chao

AU - Gao, Kun

AU - Liu, De Sheng

AU - Xie, Shi Jie

PY - 2008/8/1

Y1 - 2008/8/1

N2 - The dynamical process of charge injection from metal electrode to a nondegenerate polymer in a metal/polythiophene (PT)/metal structure has been investigated by using a nonadiabatic dynamic approach. It is found that the injected charges form wave packets due to the strong electron-lattice interaction in PT. We demonstrate that the dynamical formation of the wave packet sensitively depends on the strength of applied voltage, the electric field, and the contact between PT and electrode. At a strength of the electric field more than 3.0 × 104 V/cm, the carriers can be ejected from the PT into the right electrode. At an electric field more than 3.0 × 105 V/cm, the wave packet cannot form while it moves rapidly to the right PT/metal interface. It is shown that the ejected quantity of charge is noninteger.

AB - The dynamical process of charge injection from metal electrode to a nondegenerate polymer in a metal/polythiophene (PT)/metal structure has been investigated by using a nonadiabatic dynamic approach. It is found that the injected charges form wave packets due to the strong electron-lattice interaction in PT. We demonstrate that the dynamical formation of the wave packet sensitively depends on the strength of applied voltage, the electric field, and the contact between PT and electrode. At a strength of the electric field more than 3.0 × 104 V/cm, the carriers can be ejected from the PT into the right electrode. At an electric field more than 3.0 × 105 V/cm, the wave packet cannot form while it moves rapidly to the right PT/metal interface. It is shown that the ejected quantity of charge is noninteger.

KW - Carriers transport

KW - Electron-phonon interactions

KW - Metal/polythiophene/metal structure

KW - Wave packet

UR - http://www.scopus.com/inward/record.url?scp=56349165733&partnerID=8YFLogxK

U2 - 10.1088/1674-1056/17/8/050

DO - 10.1088/1674-1056/17/8/050

M3 - Article

AN - SCOPUS:56349165733

SN - 1674-1056

VL - 17

SP - 3067

EP - 3076

JO - Chinese Physics B

JF - Chinese Physics B

IS - 8

ER -

Dynamical study on charge injection and transport in a metal/polythiophene/ metal structure

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this