Now showing items 1-5 of 5

    • Coherent mode coupling in highly efficient top-emitting OLEDs on periodically corrugated substrates 

      Schwab, Tobias; Fuchs, Cornelius; Scholz, Reinhard; Zakhidov, Alexander; Leo, Karl; Gather, Malte Christian (2014-03-25) - Journal article
      Bragg scattering at one-dimensional corrugated substrates allows to improve the light outcoupling from top-emitting organic light-emitting diodes (OLEDs). The OLEDs rely on a highly efficient phosphorescent pin stack and ...
    • Nanoimprinted polymer lasers with threshold below 100 W/cm2 using mixed-order distributed feedback resonators 

      Wang, Yue; Tsiminis, Georgios; Kanibolotsky, Alexander L.; Skabara, Peter J.; Samuel, Ifor David William; Turnbull, Graham A. (2013-06-17) - Journal article
      Organic semiconductor lasers were fabricated by UV-nanoimprint lithography with thresholds as low as 57 W/cm2 under 4 ns pulsed operation. The nanoimprinted lasers employed mixed-order distributed feedback resonators, with ...
    • Organic light-emitting diodes for optogenetic stimulation of Drosophila larvae 

      Murawski, Caroline; Morton, Andrew; Samuel, Ifor David William; Pulver, Stefan; Gather, Malte Christian (Optical Society of American (OSA), 2016-11-14) - Conference item
      Optogenetics is an emerging method in biology that enables controlling neurons with light. We use organic light-emitting diodes to stimulate neurons in Drosophila larvae and investigate subsequent behavioral changes at ...
    • Orientation of OLED emitter molecules revealed by XRD 

      Murawski, Caroline; Elschner, Chris; Lenk, Simone; Reineke, Sebastian; Gather, Malte Christian (Optical Society of American (OSA), 2016-11-14) - Conference item
      Thin films of the phosphorescent emitters Ir(ppy)3 and Ir(ppy)2(acac) are investigated by GIXRD and GIWAXS. Both molecules form crystalline grains and exhibit a preferred orientation that is pertained even when doped into a host.
    • Wide field of view fluorescent antenna for visible light communications beyond the étendue limit 

      Manousiadis, Pavlos; Rajbhandari, Sujan; Mulyawan, Rahmat; Vithanage, Chiranthika Dimali Amarasinghe; Chun, Hyunchae; Faulkner, Grahame; O'Brien, Dominic C; Turnbull, Graham Alexander; Collins, Stephen; Samuel, Ifor David William (2016-07-20) - Journal article
      Visible light communications (VLC) is an important emerging field aiming to use optical communications to supplement Wi-Fi. This will greatly increase the available bandwidth so that demands for ever-higher data rates can ...