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Formation and electron properties of the interface between organic (TPD) and inorganic (ZnO) materials
- Source :
- Technical Physics Letters. 35:359-361
- Publication Year :
- 2009
- Publisher :
- Pleiades Publishing Ltd, 2009.
-
Abstract
- The initial stage of formation of an organic coating of N,N′-bis(3-methylphenyl)-N,N′-diphenylbenzidine (TPD) on a crystalline (ZnO) surface in the course of thermal deposition in high vacuum has been studied using the low-energy total current spectroscopy technique. A change in the work function and the density of unoccupied electron states in an energy interval of 0–20 eV above the vacuum level was traced as the organic coating thickness increased up to 8 nm. The energy positions of the bands of unoccupied electron states in the TPD film have been determined, including π* band (7–9 eV above the Fermi level), σ1* band (10–12 eV), σ2* band (14–16 and 18–20 eV).
Details
- ISSN :
- 10906533 and 10637850
- Volume :
- 35
- Database :
- OpenAIRE
- Journal :
- Technical Physics Letters
- Accession number :
- edsair.doi...........1e0d52e23d87df25e0fc840f74dde272