Self-Aligned Integration of Spin-Coated Organic Light-Emitting Diodes and Photodetectors on a Single Substrate

We present a self-aligned optical all integrated measurement section on a single substrate consisting of an organic light-emitting diode (OLED) as light source and an organic photodetector (OPD), both fabricated by spin-coating. Areas of the layers, that are not required, are removed by an oxygen pl...

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Bibliographic Details
Published in:IEEE photonics technology letters 2012-06, Vol.24 (11), p.912-914
Main Authors: Threm, D., Gugat, J. L., Pradana, A., Radler, M., Mikat, J., Gerken, M.
Format: Article
Language:English
Subjects:
Current measurement
Indium tin oxide
Integrated system
Organic light emitting diodes
organic light-emitting diode (OLED)
organic photodetector (OPD)
Physics
Plasmas
polymer
Polymers
spin-coating
Substrates
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Summary:We present a self-aligned optical all integrated measurement section on a single substrate consisting of an organic light-emitting diode (OLED) as light source and an organic photodetector (OPD), both fabricated by spin-coating. Areas of the layers, that are not required, are removed by an oxygen plasma treatment. No additional shadow mask is used in this self-aligned structuring process as the metal cathodes protect the underlying organic layers. The functionality of the optoelectronic components is maintained. The devices are characterized by current-voltage (I-V) and spectral measurements. The modulation of the OLED light intensity is detected at the OPD by a significant increase of the photo current.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2012.2190592