Relative permittivity and Hubbard U of pentacene extracted from scanning tunneling microscopy studies of p-doped films

Sieu D. Ha; Yabing Qi; Antoine Kahn

doi:10.1016/j.cplett.2010.06.085

Relative permittivity and Hubbard U of pentacene extracted from scanning tunneling microscopy studies of p-doped films

Sieu D. Ha, Yabing Qi, Antoine Kahn

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

9 Scopus citations

Abstract

Temperature-dependent I-V measurements determine that pentacene is effectively p-doped by tetrafluoro-tetracyanoquinodimethane (F ₄-TCNQ). It has been shown by scanning tunneling microscopy (STM) that the donated hole is localized by the ionized dopant counter potential, and that the hole can be visualized [4]. Here, it is argued that the effect of the localized hole on STM images should depend on distance as 1/r, as per the Coulomb potential. By fitting line profiles of localized hole features to the Coulomb potential, it is shown that approximate values for the relative permittivity and Hubbard U of pentacene can be extracted.

Original language	English (US)
Pages (from-to)	212-217
Number of pages	6
Journal	Chemical Physics Letters
Volume	495
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2010.06.085
State	Published - Aug 10 2010

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

Access to Document

10.1016/j.cplett.2010.06.085

Cite this

@article{1ca7edeb429c4b8496665a83998021c0,

title = "Relative permittivity and Hubbard U of pentacene extracted from scanning tunneling microscopy studies of p-doped films",

abstract = "Temperature-dependent I-V measurements determine that pentacene is effectively p-doped by tetrafluoro-tetracyanoquinodimethane (F 4-TCNQ). It has been shown by scanning tunneling microscopy (STM) that the donated hole is localized by the ionized dopant counter potential, and that the hole can be visualized [4]. Here, it is argued that the effect of the localized hole on STM images should depend on distance as 1/r, as per the Coulomb potential. By fitting line profiles of localized hole features to the Coulomb potential, it is shown that approximate values for the relative permittivity and Hubbard U of pentacene can be extracted.",

author = "Ha, {Sieu D.} and Yabing Qi and Antoine Kahn",

note = "Funding Information: Funding from the National Science Foundation ( DMR-0705920 ) is gratefully acknowledged. We thank Professor Z.G. Soos for valuable discussions. ",

year = "2010",

month = aug,

day = "10",

doi = "10.1016/j.cplett.2010.06.085",

language = "English (US)",

volume = "495",

pages = "212--217",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

number = "4-6",

}

TY - JOUR

T1 - Relative permittivity and Hubbard U of pentacene extracted from scanning tunneling microscopy studies of p-doped films

AU - Ha, Sieu D.

AU - Qi, Yabing

AU - Kahn, Antoine

N1 - Funding Information: Funding from the National Science Foundation ( DMR-0705920 ) is gratefully acknowledged. We thank Professor Z.G. Soos for valuable discussions.

PY - 2010/8/10

Y1 - 2010/8/10

N2 - Temperature-dependent I-V measurements determine that pentacene is effectively p-doped by tetrafluoro-tetracyanoquinodimethane (F 4-TCNQ). It has been shown by scanning tunneling microscopy (STM) that the donated hole is localized by the ionized dopant counter potential, and that the hole can be visualized [4]. Here, it is argued that the effect of the localized hole on STM images should depend on distance as 1/r, as per the Coulomb potential. By fitting line profiles of localized hole features to the Coulomb potential, it is shown that approximate values for the relative permittivity and Hubbard U of pentacene can be extracted.

AB - Temperature-dependent I-V measurements determine that pentacene is effectively p-doped by tetrafluoro-tetracyanoquinodimethane (F 4-TCNQ). It has been shown by scanning tunneling microscopy (STM) that the donated hole is localized by the ionized dopant counter potential, and that the hole can be visualized [4]. Here, it is argued that the effect of the localized hole on STM images should depend on distance as 1/r, as per the Coulomb potential. By fitting line profiles of localized hole features to the Coulomb potential, it is shown that approximate values for the relative permittivity and Hubbard U of pentacene can be extracted.

UR - http://www.scopus.com/inward/record.url?scp=77955415091&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77955415091&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2010.06.085

DO - 10.1016/j.cplett.2010.06.085

M3 - Article

AN - SCOPUS:77955415091

SN - 0009-2614

VL - 495

SP - 212

EP - 217

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-6

ER -

Relative permittivity and Hubbard U of pentacene extracted from scanning tunneling microscopy studies of p-doped films

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this