The role of interface states in controlling the electronic structure of Alq3/reactive metal contacts
Autor: | Chongfei Shen, Antoine Kahn |
---|---|
Rok vydání: | 2001 |
Předmět: |
Condensed matter physics
Interface (Java) Chemistry Fermi level General Chemistry Bending Electronic structure Condensed Matter Physics Electronic Optical and Magnetic Materials Biomaterials Metal symbols.namesake Dipole visual_art Molecular film Materials Chemistry symbols visual_art.visual_art_medium Metal-induced gap states Electrical and Electronic Engineering Atomic physics |
Zdroj: | Organic Electronics. 2:89-95 |
ISSN: | 1566-1199 |
DOI: | 10.1016/s1566-1199(01)00015-5 |
Popis: | Gap states induced by the formation of metal/organic interfaces have been observed in a number of instances. Yet, the role that these states play in determining the electronic structure of the interface and the carrier injection barriers has not been clearly established. In this paper, we provide a model for the role of chemistry-induced gap states at Mg/Alq3 and Al/Alq3 interfaces, in particular with regard to the formation of dipole barrier and level bending. We show that these states play a defining role in producing identical Fermi level positions at metal-on-organic and organic-on-metal interfaces. The model is supported by photoemission and current–voltage measurements. |
Databáze: | OpenAIRE |
Externí odkaz: |
načítá se...