Hydrofluoroethers as heat-transfer fluids for OLEDs: Operational range, stability, and efficiency improvement

Publication year: 2011 Source: Organic Electronics, Available online 24 December 2011 Alexander A. Zakhidov, Sebastian Reineke, Björn Lüssem, Karl Leo In this work we introduce a simple yet very efficient method of heat dissipation by immersing OLED device into hydrofluoroether (HFE) fluids. It is shown that due to highly fluorous nature of this class of fluids, HFE do not damage organic semiconductors which are comprised in the OLED stack and therefore can be used as encapsulation media. HFE also have high thermal conductivity, low viscosity and can efficiently dissipate the heat by means of natural convection with laminar flow.

Publication year: 2011 Source: Organic Electronics, Available online 24 December 2011 Alexander A. Zakhidov, Sebastian Reineke, Björn Lüssem, Karl Leo In this work we introduce a simple yet very efficient method of heat dissipation by immersing OLED device into hydrofluoroether (HFE) fluids. It is shown that due to highly fluorous nature of this class of fluids, HFE do not damage organic semiconductors which are comprised in the OLED stack and therefore can be used as encapsulation media. HFE also have high thermal conductivity, low viscosity and can efficiently dissipate the heat by means of natural convection with laminar flow.

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Hydrofluoroethers as heat-transfer fluids for OLEDs: Operational range, stability, and efficiency improvement