Modification of current-voltage characteristics of planar organic systems by nm-thick copper phthalocyanine or perylene dye interlayer

• Authors: Ryszard Signerski , Grażyna Jarosz
• Languages of publication: EN

Abstracts

EN

The effect of a nm-thick interlayer of copper phthalocyanine (CuPc) or perylene dye (MePTCDI) on currentvoltage characteristics of planar organic systems is discussed in this work. The MePTCDI layer in the ITO/MePTCDI/CuPc/Au system strongly reduces reverse dark current by blocking injection of holes from ITOinto CuPc leading to high values of rectification ratio. The CuPc interlayer in the ITO/CuPc/MePTCDI/Ag system causes a strong reduction in electron injection from ITOand reverses a forward polarity. Modification of current-voltage characteristics of illuminated systems with an interlayer of MePTCDI or CuPc is associated with a strong photovoltaic effect. This results from efficient excition dissociation at the CuPc/MePTCDI interface. Saturation current, determined by this process of charge carrier photogeneration, can be observed at particular voltage polarity.

Keywords

EN

organic devices; photovoltaic cells; phthalocyanine; perylene dye

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2013
• Volume: 11
• Issue: 2
• Pages: 264-268

Dates

published

1 - 2 - 2013

online

9 - 2 - 2013

Contributors

author

Ryszard Signerski

• Department of Applied Physics and Mathematics, Gdańsk University of Technology, ul. Narutowicza 11/12, 80-233, Gdańsk, Poland

author

Grażyna Jarosz

• Department of Applied Physics and Mathematics, Gdańsk University of Technology, ul. Narutowicza 11/12, 80-233, Gdańsk, Poland

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Identifiers

DOI

10.2478/s11534-012-0162-4