In an OLED, efficient TADF emitters are achieved in an integrated system of the emitter itself and its surrounding materials, the host and transport materials. CYNORA is developing such systems with its customers and partners. Our R&D covers all development aspects in a connected closed-loop approach from the simulation of the materials to device fabrication and testing, constantly collaborating with the costumers at all development stages. This efficient approach ensures a fast progress towards the best material set for the customer.
Photophysics & Simulation
CYNORA uses various levels of computational material design: CYNORA’s ideas for new materials are studied first in a First-Principle Quantum Chemistry Screening approach, using e.g. DFT (density functional theory) and machine learning (ML). CYNORA’s pioneering strategy allows for predicting important properties of emitters, like their color or their TADF potential. In addition, we include tailor-made AI guided In-silico synthesis for the creating of virtual libraries based on high-volume molecular syntheses. Promising candidates are then successively selected for synthesis. Besides this screening, we focus on innovative Quantum- and Analytical-Data fed Machine Learning Approaches to gain a better understanding of exceptionally good material families via e.g. Heat Maps of structure-property relationships, and to support the interpretation of complex experimental results.
The synthesis division is responsible for delivering our electronic grade ultra-pure organic functional materials for our research and development, as well as for our customers. We have gained operational excellence for high-throughput syntheses, and have installed several tools for real-time monitoring of synthesis KPIs via web-based data monitoring. Due to our excellent trained members, we can handle high-complex synthetic routes towards our target materials. Our in-house scale-up expertise enables us to directly deliver our lead candidates to our customers. Depending on the requirements, synthesis of up to several hundred grams is possible. At the end of the material synthesis, sublimation steps are performed to achieve the highest possible purity for vacuum- based processing.
Detailed material analytics
The analytics department in CYNORA takes care about all important chemical and photophysical analyses of all in-house produced materials. We apply highest quality standards in order to ensure the accuracy and reliability of these results.
Our methods include measurements to characterize our emitter materials for their required high-level purity, quantum efficiency, energetical properties, and color, amongst others. We also use various steady-state and time-resolved photoluminance measurements to gain deeper insight into our materials. Our laser lab allows for capturing ultrafast processes and material interactions needed for a better understanding. All these information provide important information for carrying out structure-property relationships, and selecting the right materials for our device fabrication and testing.
In addition to these highest quality measurements, we regularly carry out method developments and implement new analytical procedures in order to obtain even more information about our materials.
Device optimization and fabrication
The device optimization and fabrication divisions are responsible to enable the best performance out of our internally developed proprietary emissive materials in devices. Our in-depth knowledge in device physics and core competence in translating structure-property relations into device performance allow us to identify the next generation display materials effectively. We enable future display application by understanding root-causes of device behavior due to stack design and consequent methodology in our design of experiments. The utilization of state-of-the-art fabrication tools and processes further boosts our progress satisfying customer requirements.