1 The Mads Clausen Institute, Faculty of Engineering, SDU2 SDU NanoSYD, The Mads Clausen Institute, Faculty of Engineering, SDU3 Christian-Albrechts-Universität zu Kiel4 Institute of Microstructure Technology, Karlsruhe Institute of Technology5 The Mads Clausen Institute, Faculty of Engineering, SDU
We propose multi-periodic nanostructures yielded by superposition of multiple binary gratings for wide control over photon emission in thin-film devices. We present wavelength- and angle-resolved photoluminescence measurements of multi-periodically nanostructured organic light-emitting layers. The spectral resonances are determined by the periodicities of the individual gratings. By varying component duty cycles we tune the relative intensity of the main resonance from 12% to 82%. Thus, we achieve simultaneous control over the spectral resonance positions and relative intensities.