Spontaneous charge transfer at organic-organic homointerfaces to establish thermodynamic equilibrium
The energy level alignment of α,ω-dihexylsexithienyl (DH6T) mono- and multilayers on tetrafluorotetracyanoquinodimethane (F4-TCNQ) precovered Ag(111) and polycrystalline Au substrates was investigated with ultraviolet photoelectron spectroscopy. For certain F4-TCNQ precoverages molecular level pinni...
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| Veröffentlicht in: | Applied physics letters 2007-03, Vol.90 (12) |
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| container_title | Applied physics letters |
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| creator | Duhm, S. Glowatzki, H. Rabe, J. P. Koch, N. Johnson, R. L. |
| description | The energy level alignment of α,ω-dihexylsexithienyl (DH6T) mono- and multilayers on tetrafluorotetracyanoquinodimethane (F4-TCNQ) precovered Ag(111) and polycrystalline Au substrates was investigated with ultraviolet photoelectron spectroscopy. For certain F4-TCNQ precoverages molecular level pinning at DH6T monolayer-multilayer homointerfaces was observed. The pinning behavior shows that thermodynamic equilibrium can be established across hexyl chains via charge transfer, indicating the limited use of these short alkyl chains for insulation in the field of molecular electronics. |
| doi_str_mv | 10.1063/1.2715042 |
| format | Article |
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| ispartof | Applied physics letters, 2007-03, Vol.90 (12) |
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| source | American Institute of Physics (AIP) Journals; AIP Digital Archive |
| subjects | CHARGE EXCHANGE CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ENERGY LEVELS HETEROCYCLIC COMPOUNDS ORGANIC COMPOUNDS PHOTOELECTRON SPECTROSCOPY POLYCRYSTALS SILVER SUBSTRATES ULTRAVIOLET RADIATION |
| title | Spontaneous charge transfer at organic-organic homointerfaces to establish thermodynamic equilibrium |
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