Electronic structures of a well-defined organic hetero-interface: C60on pentacene single crystal?

Masayuki Yamamoto, Yasuo Nakayama, Yuki Uragami, Hiroumi Kinjo, Yuta Mizuno, Kazuhiko Mase, Kaveenga Rasika Koswattage, Hisao Ishii

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Electronic structures of donor-acceptor hetero-interfaces are crucial for performance of organic solar cell devices. In the present study, a well-defined organic molecular interface of pentacene single crystal and C60 overlayer is elucidated by x-ray and ultraviolet photoelectron spectroscopy (XPS and UPS) and photoelectron yield spectroscopy (PYS). An energy level diagram at this hetero-molecular contact in the "head-on" orientation is derived, which reveals the vacuum level alignment and flat-band conditions.

Original languageEnglish
Pages (from-to)59-64
Number of pages6
Journale-Journal of Surface Science and Nanotechnology
Volume13
DOIs
Publication statusPublished - 2015

Keywords

  • C buckminsterfullerene
  • Organic semiconductor
  • Pentacene
  • Photoelectron spectroscopy
  • Photoelectron yield spectroscopy

Fingerprint

Dive into the research topics of 'Electronic structures of a well-defined organic hetero-interface: C60on pentacene single crystal?'. Together they form a unique fingerprint.

Cite this