Structural and electronic properties of ultrathin picene films on the Ag(100) surface
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- 作者：Simon J. Kellya ; Dan C. Sorescub ; c ; Jun Wanga ; Kaye A. Archerd ; Kenneth D. Jordanc ; d ; Petro Maksymovycha ; maksymovychp@ornl.gov" class="auth_mail" title="E-mail the corresponding author
- 关键词：Picene ; Tunneling spectroscopy ; Potassium ; Silver ; Electron affinity
- 刊名：Surface Science
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：652
- 期：Complete
- 页码：67-75
- 全文大小：2328 K
文摘
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Picene on copper and silver surfaces forms two phases in which all molecules are in direct contact with the surface.
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In phase 1, picene molecules are flat-lying whereas phase 2 comprises weakly and strongly tilted molecules.
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Electrostatic screening in phase 2 is comparable to that in bulk crystal.
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Alkali doping significantly disorders phase 2 of picene molecules.