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Proceedings Paper

Direct observation of the evolution of both the HOMO and LUMO energy levels of a silole derivative at a magnesium/silole interface
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Paper Abstract

The electronic structure of the interface formed by Mg deposition onto 2,5-bis(6’-(2’,2"-bipyridyl))-1,1-dimethyl-3,4-diphenyl silacyclopentadiene (PyPySPyPy) was investigated using ultraviolet, inverse, and X-ray photoemission spectroscopies. PyPySPyPy is of interest for use as an electron injection/transport layer in high efficiency organic light-emitting diodes. Upon deposition of Mg onto PyPySPyPy there is a shift of the occupied energy level structure to higher binding energy, away from the Fermi level, and appearance of two energy levels within the energy gap of PyPySPyPy. The lowest unoccupied molecular orbital is also shifted to higher binding energy.

Paper Details

Date Published: 16 February 2004
PDF: 9 pages
Proc. SPIE 5214, Organic Light-Emitting Materials and Devices VII, (16 February 2004); doi: 10.1117/12.515300
Show Author Affiliations
Neil J. Watkins, Naval Research Lab. (United States)
Antti J Makinen, Naval Research Lab. (United States)
Yongli Gao, Univ. of Rochester (United States)
Manabu Uchida, Chisso Corp. (Japan)
Zakya H. Kafafi, Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 5214:
Organic Light-Emitting Materials and Devices VII
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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