Integrated Systems and Photonics

Organic optoelectronics

Light emitting diodes (OLEDs), and photo detectors (OPDs) based on organic semiconductor materials can be monolithically integrated on very different substrates. This provides the ability to directly integrate compact, cost-effective optoelectronic units into microfluidic chips. Figure 1 shows a macroscopic test system for this concept. We explore the miniaturisation of such optical reader units for micro-integration and use in sensors. For this purpose, we develop OLEDs and OPDs in the Kiel Nanolaboratory. Our speciality is the use of nanostructuring for customising the radiation characteristics of OLEDs. This is particularly interesting for miniaturised sensor systems, for optimum utilisation of light.

Figure 1:
Figure 1: Photo of an integrated OLED-OPD reader unit integrated with a microfluidic chip.
Figure 2:
Figure 2: Blue OLED as part of the optoelectronic unit.

 

In the Interreg project RollFlex, we research OLEDs and organic photovoltaics (OPVs), together with the University of Southern Denmark, Phi-Stone AG and the Danish company Stensborg A/S.

rollflex
Interreg

Selected Publications

S. Jahns, A. F. K. Iwers, J. Balke, and M. Gerken, "Organic optoelectronics for lab-on-chip fluorescence detection", tm - Tech. Mess., vol. 84(s1), pp. 48–51, (2017).
Link: »https://doi.org/10.1515/teme-2017-0034

A. Pradana and M. Gerken, "Photonic crystal slabs in flexible organic light-emitting diodes", Photon. Res., vol. 3, no. 2, pp. 32–37 (2015).
Link: »https://dx.doi.org/10.1364/PRJ.3.000032

C. Kluge, J. Adam, N. Barié, P. J. Jakobs, M. Guttmann and M. Gerken, "Multi-periodic nanostructures for photon control", Opt. Express, vol. 22, no. S5, pp. A1363-A1371 (2014).
Link: »https://dx.doi.org/10.1364/OE.22.0A1363