Energy-level alignment at interfaces between gold and poly(3- hexylthiophene) films with two different molecular structures

Yeong Don Park, Jeong Ho Cho, Do Hwan Kim, Yunseok Jang, Hwa Sung Lee, Kyuwook Ihm, Tai Hee Kang, Kilwon Cho

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

The electronic structures of the interfaces between Au and poly(3-hexylthiophene) (P3HT) films with two different molecular orientations and orderings were investigated using synchrotron radiation photoemission spectroscopy. We found that, depending on whether thermal treatment was used, the P3HT thin film adopts two different molecular orientations, parallel and perpendicular to the silicon substrate, which result in different values of the vacuum level shift and hole-injection barrier. Thus, the molecular orientation and ordering of the P3HT material strongly affect the energy level alignment at the P3HT/Au interface.

Original languageEnglish
Pages (from-to)G317-G319
JournalElectrochemical and Solid-State Letters
Volume9
Issue number11
DOIs
Publication statusPublished - 2006 Sep 21

Fingerprint

Molecular orientation
Gold
Electron energy levels
Molecular structure
molecular structure
energy levels
alignment
gold
Photoelectron spectroscopy
Synchrotron radiation
Electronic structure
synchrotron radiation
Silicon
photoelectric emission
Heat treatment
Vacuum
injection
electronic structure
Thin films
vacuum

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

Park, Yeong Don ; Cho, Jeong Ho ; Kim, Do Hwan ; Jang, Yunseok ; Lee, Hwa Sung ; Ihm, Kyuwook ; Kang, Tai Hee ; Cho, Kilwon. / Energy-level alignment at interfaces between gold and poly(3- hexylthiophene) films with two different molecular structures. In: Electrochemical and Solid-State Letters. 2006 ; Vol. 9, No. 11. pp. G317-G319.
@article{11bfbae3a57043d381d5d1ba024125fd,
title = "Energy-level alignment at interfaces between gold and poly(3- hexylthiophene) films with two different molecular structures",
abstract = "The electronic structures of the interfaces between Au and poly(3-hexylthiophene) (P3HT) films with two different molecular orientations and orderings were investigated using synchrotron radiation photoemission spectroscopy. We found that, depending on whether thermal treatment was used, the P3HT thin film adopts two different molecular orientations, parallel and perpendicular to the silicon substrate, which result in different values of the vacuum level shift and hole-injection barrier. Thus, the molecular orientation and ordering of the P3HT material strongly affect the energy level alignment at the P3HT/Au interface.",
author = "Park, {Yeong Don} and Cho, {Jeong Ho} and Kim, {Do Hwan} and Yunseok Jang and Lee, {Hwa Sung} and Kyuwook Ihm and Kang, {Tai Hee} and Kilwon Cho",
year = "2006",
month = "9",
day = "21",
doi = "10.1149/1.2337862",
language = "English",
volume = "9",
pages = "G317--G319",
journal = "Electrochemical and Solid-State Letters",
issn = "1099-0062",
publisher = "Electrochemical Society, Inc.",
number = "11",

}

Energy-level alignment at interfaces between gold and poly(3- hexylthiophene) films with two different molecular structures. / Park, Yeong Don; Cho, Jeong Ho; Kim, Do Hwan; Jang, Yunseok; Lee, Hwa Sung; Ihm, Kyuwook; Kang, Tai Hee; Cho, Kilwon.

In: Electrochemical and Solid-State Letters, Vol. 9, No. 11, 21.09.2006, p. G317-G319.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Energy-level alignment at interfaces between gold and poly(3- hexylthiophene) films with two different molecular structures

AU - Park, Yeong Don

AU - Cho, Jeong Ho

AU - Kim, Do Hwan

AU - Jang, Yunseok

AU - Lee, Hwa Sung

AU - Ihm, Kyuwook

AU - Kang, Tai Hee

AU - Cho, Kilwon

PY - 2006/9/21

Y1 - 2006/9/21

N2 - The electronic structures of the interfaces between Au and poly(3-hexylthiophene) (P3HT) films with two different molecular orientations and orderings were investigated using synchrotron radiation photoemission spectroscopy. We found that, depending on whether thermal treatment was used, the P3HT thin film adopts two different molecular orientations, parallel and perpendicular to the silicon substrate, which result in different values of the vacuum level shift and hole-injection barrier. Thus, the molecular orientation and ordering of the P3HT material strongly affect the energy level alignment at the P3HT/Au interface.

AB - The electronic structures of the interfaces between Au and poly(3-hexylthiophene) (P3HT) films with two different molecular orientations and orderings were investigated using synchrotron radiation photoemission spectroscopy. We found that, depending on whether thermal treatment was used, the P3HT thin film adopts two different molecular orientations, parallel and perpendicular to the silicon substrate, which result in different values of the vacuum level shift and hole-injection barrier. Thus, the molecular orientation and ordering of the P3HT material strongly affect the energy level alignment at the P3HT/Au interface.

UR - http://www.scopus.com/inward/record.url?scp=33748685418&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33748685418&partnerID=8YFLogxK

U2 - 10.1149/1.2337862

DO - 10.1149/1.2337862

M3 - Article

AN - SCOPUS:33748685418

VL - 9

SP - G317-G319

JO - Electrochemical and Solid-State Letters

JF - Electrochemical and Solid-State Letters

SN - 1099-0062

IS - 11

ER -