Investigation of organic-inorganic composites.
Published: 2004
Language: eng
Number of pages: 69
Description: Doping the organic layers in Organic Light Emitting Diodes (OLEDs) by inorganic dopants is a promising way to improve device stability. However, no systematic research has been performed to examine the organic-inorganic composite materials. In this study, organic-inorganic composites were grown by vacuum deposition from three inorganic dopants (LiF, Noble metals, and C60) and five organic molecules (TPD, NPB, Alq3, C60 , and CuPc). Most of these combinations have never been studied before. X-ray photoelectron spectroscopy was applied to probe the interactions between hosts and guests. It was found electron transport materials are strong electron acceptors. Charge transfer state exists between them and LiF. In contrast, none of the dopants react with hole transport materials. In addition, optical absorption spectra of these composites were measured and discussed. These results provide insight into the nature of the composites, and lay the foundation for future work in fabricating composite devices.
Notes: Adviser:  Z. H. Lu.

Thesis (M.A.Sc.)--University of Toronto, 2004.

Electronic version licensed for access by U. of T. users.

Source: Masters Abstracts International, Volume: 43-03, page: 0965.

MICR copy on microfiche (1 microfiche).