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, Wi Hyoung Lee, Kilwon Cho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 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
Title of host publicationSYNCHROTRON RADIATION INSTRUMENTATION
Subtitle of host publicationNinth International Conference on Synchrotron Radiation Instrumentation
Pages1623-1625
Number of pages3
DOIs
Publication statusPublished - 2007 Mar 26
EventSYNCHROTRON RADIATION INSTRUMENTATION: 9th International Conference on Synchrotron Radiation Instrumentation - Daegu, Korea, Republic of
Duration: 2006 May 282006 Jun 28

Publication series

NameAIP Conference Proceedings
Volume879
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceSYNCHROTRON RADIATION INSTRUMENTATION: 9th International Conference on Synchrotron Radiation Instrumentation
CountryKorea, Republic of
CityDaegu
Period06/5/2806/6/28

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Park, Y. D., Cho, J. H., Kim, D. H., Lee, W. H., & Cho, K. (2007). Energy-level alignment at interfaces between gold and poly(3- hexylthiophene) films with two different molecular structures. In SYNCHROTRON RADIATION INSTRUMENTATION: Ninth International Conference on Synchrotron Radiation Instrumentation (pp. 1623-1625). (AIP Conference Proceedings; Vol. 879). https://doi.org/10.1063/1.2436377