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Initiation of collapsing pentacene crystal by Au

  • Kyuwook Ihm*
  • , Kyoung Jae Lee
  • , Sukmin Chung
  • , Tai Hee Kang
  • *Corresponding author for this work
  • Pohang Accelerator Laboratory
  • Pohang University of Science and Technology

Research output: Contribution to conferenceConference paperpeer-review

Abstract

Metal contacts with gold on organics are an essential factor in organic electronics. The unveiled key challenge is to probe dynamic details of the microscopic evolution of the organic crystal when the atomic Au is introduced. Here, we show how the collapse of the pentacene crystal is initiated even by a few Au atoms. Our photoemission and x-ray absorption results indicate that the gentle decoupling of intra and inter-molecular π-π interactions causes the localization of the lowest unoccupied molecular orbital as well as the removal of cohesive forces between molecules, leading to the subsequent crystal collapse.

Original languageEnglish
Title of host publicationPhysics of Semiconductors - 30th International Conference on the Physics of Semiconductors, ICPS-30
Pages203-204
Number of pages2
DOIs
StatePublished - 2011
Event30th International Conference on the Physics of Semiconductors, ICPS-30 - Seoul, Korea, Republic of
Duration: 2010.07.252010.07.30

Publication series

NameAIP Conference Proceedings
Volume1399
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference30th International Conference on the Physics of Semiconductors, ICPS-30
Country/TerritoryKorea, Republic of
CitySeoul
Period10.07.2510.07.30

Keywords

  • Near edge x-ray absorption fine structure
  • organic crystal
  • Pentacene

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