摘要(英) |
In recent years, more and more researchers have paid attention to the OLEDs. If the characteristics of an OLED device can be simulated before fabrication, it will be helpful for selecting materials and reducing manufacturing costs. However, to establish a simulation system relies on multiple experiments, such as measuring the characteristics of the material. The measured results are used as feedback for improving the accuracy of the simulation model and also helpful for further erroneous analyses.
In this study, we built a three dimensional thermal simulation model by the software of COMSOL Multiphysics and used transient thermal resistance measurement method to measure the thermal resistance of the organic layer. By means of our thermal model, the temperature distribution on an OLED device can be simulated. In order to verify this thermal model, we constructed a system by using a thermocouple and a thermal imager to measure the actual temperature distribution of OLEDs. Meanwhile, we measured the luminous performance of OLEDs and compared it with the measured temperature distribution to know the energy conversion trend. |
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