The interfacial electronic structure of fullerene/ultra thin dielectrics of SiO2 and SiON

S. W. Cho, Y. Yi, K. B. Chung, S. J. Kang, M. H. Cho

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The electronic structures at the interface region between fullerene and dielectric layers were investigated by in situ ultraviolet photoelectron spectroscopy (UPS) and X-ray photoelectron spectroscopy (XPS). The highest occupied molecular orbital (HOMO) onset of the fullerene layer saturates at 1.3 eV below the Fermi level of the SiO2 layer, which was based on the measurement of the sample with a 12.8 nm thick fullerene layer. On the other hand, the HOMO onset was measured at 2.0 eV below the SiON layer Fermi level. The magnitude of the interface dipole and band bending at the interface was determined, and the complete energy level diagrams for fullerene on SiO 2 and SiON were evaluated.

Original languageEnglish
Pages (from-to)136-140
Number of pages5
JournalChemical Physics Letters
Volume499
Issue number1-3
DOIs
StatePublished - 20 Oct 2010

Fingerprint

Dive into the research topics of 'The interfacial electronic structure of fullerene/ultra thin dielectrics of SiO2 and SiON'. Together they form a unique fingerprint.

Cite this