Research Blogs
Advanced OLED Research with Setfos – Insights from Professor Chris Giebink
Discover how Professor Noel Giebink and his team use Setfos to advance OLED research. Learn how Setfos simulations help optimize device performance, improve efficiency, and push the boundaries of OLED technology. Get a free 1-month evaluation license today!
Angular Resolved Photoluminescence and Electroluminescence of light emitting materials
Setfos can analyze angular-dependent PL data collected by Phelos to get information about the properties of an organic emitter, such as the orientation of the dipoles and the width of the emission zone. With this analysis, we are able to optimize the characteristics of our OLEDs for high EQEs.
Impact of Photon Recycling on the Efficiency of Light Extraction in Metal Halide Perovskite Light Emitting Diodes
We introduced a theoretical treatment of photon emission and recycling in optoelectronic semiconductor devices that is free of non-physical divergencies. Here, we now show the application of this framework to the assessment of the impact of PR on the light extraction efficiency in perovskite LEDs. This treatment goes from the analysis of contributing photonic modes in single emitter slab configurations to the evaluation of the external LED quantum efficiency in realistic device stacks.
EQE optimization For a Top-Emitting OLED
The external quantum efficiency (EQE) is the number of photons emitted by an OLED per number of injected charges. Photons are generated in the device emitting layer (EML), but most of the light is not escaping the device because of thee main loss mechanisms: Total Internal Reflection, Absorption Losses and Surface Plasmon Polaritons (SPPs). In this example, we are showing how to use Setfos to optimize the geometry of an OLED towards high light-outcoupling efficiency.
Optimize Micro-Textures for Increased Light Extraction in Flexible, Curved Displays
Flexible electronics have been envisioned to change the way we interact with technology. Flexible circuit boards are already ubiquitous. These applications of flexible electronics are packaged away inside electrical gadgets and instruments and are therefore not visible to the end user. Nevertheless the development of this technology allowed for tighter packed and therefore smaller and still powerful devices. Curved displays are an application of flexible electronics where the user directly interacts with the shaped object and the technological advancement is directly tangible for the end user.