Growth behaviour and electronic properties of organic semiconductors on metal surfaces
by Pimo He
International Journal of Nanotechnology (IJNT), Vol. 4, No. 1/2, 2007

Abstract: The focus of this paper is to review our recent achievements in understanding the growth mechanism of organic semiconductors on metal surfaces and the electronic structures at the organic semiconductor/metal interface with scanning tunnelling microscopy (STM) and photoemission spectroscopy (PES) measurements. By choosing model systems of high-symmetrical organic molecules growth on metal surfaces, especially at the initial growth stage, the driving forces for the formation of organic ordered layers are addressed, for example, perylene growth on Ru(0001) in monolayer regime is mainly controlled by the laterally repulsive molecule-molecule interaction. Concerning whether band bending occurs within organic semiconductor layer on metal surfaces, growth of N,N'-bis-(1-naphthyl)-N,N'-diphenyl-1,1'-biphenyl-4,4'-diamine (NPB) overlayer on the well-defined Ag(111) surface and PES measurements are performed. The results showed band bending occurring within the organic overlayer, and the decrease of the work function with NPB thickness results from contributions from both the band bending and the dipole layer formed due to surface polarisation at the NPB/Ag(111) interface.

Online publication date: Mon, 05-Feb-2007

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Nanotechnology (IJNT):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com