Charge transfer and doping at organic/organic interfaces
- 10 November 2003
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 83 (19) , 3930-3932
- https://doi.org/10.1063/1.1622783
Abstract
We studied the electronic properties of technically relevant organic/organic interfaces using photoemissionspectroscopy. Representatives of organic semiconductors from the family of the phthalocyanines were evaporated onto PEDOT:PSS [mixture of poly-3,4-ethylenedioxy-thiophene and polystyrenesulfonate] thin films, which are often applied as electrode material in organic semiconductordevices. Besides the formation of interface dipoles we observe energetic shifts of the electronic levels of the semiconductors, which are explained by a doping of the organic semiconductor near the interface due to a mixing of the two organic materials within the interface region.Keywords
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