In this report, the thermal analysis of Tris (8-hydroxyquinoline) aluminum (Alq3) is presented. The thermal conductivity of Alq3, in a temperature range between 300 and 523 K, was determined by measuring its thermal diffusivity and specific heat. The thermal diffusivity measured by the laser flash method is found to decrease with temperature. The specific heat increases with temperature without any trend of saturation until the highest temperature (573 K) was investigated. The room temperature specific heat of Alq3 is about 1.03 J/g per K and the value at 523 K is about 1.67 J/g per K. A very low thermal conductivity (room temperature) of Alq3, 0.107 W/m per K, was determined. The thermal conductivity is found to increase with temperature within the investigated temperature range. The measured thermal conductivity was applied to the modeling of a heat spreading during a device operation.
|Number of pages||4|
|Journal||Thin Solid Films|
|Publication status||Published - 2000 Mar 1|
|Event||The Asia-Pacific Symposium on Organic Electroluminescent Materials and Devices - Hong Kong, Hong Kong|
Duration: 1999 Jun 8 → 1999 Jun 11
Bibliographical noteFunding Information:
The authors (MWS and HCL) wish to acknowledge the financial support from the R&D Management Center for Energy and Resources made in the program year of 1999.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Metals and Alloys
- Materials Chemistry