Polarization at the gold/pentacene interface
| Autor: | Fabrice Amy, Antoine Kahn, Calvin K. Chan |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Materials science
Inverse photoemission spectroscopy Analytical chemistry General Chemistry Condensed Matter Physics Polarization (waves) Electronic Optical and Magnetic Materials Ion Biomaterials Pentacene Metal chemistry.chemical_compound chemistry Electron injection visual_art Materials Chemistry visual_art.visual_art_medium Electrical and Electronic Engineering |
| Zdroj: | Organic Electronics. 6:85-91 |
| ISSN: | 1566-1199 |
| DOI: | 10.1016/j.orgel.2005.03.003 |
| Popis: | Direct and inverse photoemission spectroscopy are used to investigate the electronic polarization P = P+ + P− induced by the pentacene anion and cation at the Au/pentacene interface. Based on the spectroscopic measurements and on previously published calculations, we determine that the total polarization at the metal interface is approximately 0.67 eV larger than at the surface of the pentacene film, leading to a corresponding decrease of the interface transport gap. This reduced interface gap leads to hole and electron injection barriers of 0.47 eV and 1.17 eV, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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