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Proceedings Paper

Measurement of gas permeation through packaging materials of OLED by mass spectrometry
Author(s): Dongliang Wang; Junjian Li; Xiaohui Wang; Jianxiang Li
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Paper Abstract

Mass spectrometry method was introduced to measure the gas permeability of OLED packaging materials in this paper. Mass spectrum measuring gas permeability of barrier material have the characteristics of quick measure speed, may measuring any gas permeability, and high sensitivity. The penetration rates and the permeability coefficient of water vapor, oxygen and carbon dioxide permeating the encapsulation materials of OLED such as PET plastic film, UV curable adhesive and vacuum sealing wax film have been measured by using the mass spectrometry. The results of experiments show that the permeability coefficient of water vapor through a PET plastic film is 1.8×10-6 cm2/s, and of water vapor through UV curable adhesive is 1.2×10-6 cm2/s at temperature of 80 °C and relative humidity of 68 %. The water permeability coefficient of vacuum sealing wax at 50 °C and 92 %RH is 1.4×10-7 g/m2day. The water permeability of vacuum sealing wax decreases an order of magnitude than that of UV curable adhesive, So Vacuum sealing wax is suitable for the seal material in the packing of OLED than UV curable adhesive.

Paper Details

Date Published: 22 October 2010
PDF: 6 pages
Proc. SPIE 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, 76583T (22 October 2010); doi: 10.1117/12.866110
Show Author Affiliations
Dongliang Wang, Univ. of Electronic Science and Technology of China (China)
Junjian Li, Univ. of Electronic Science and Technology of China (China)
Xiaohui Wang, Univ. of Electronic Science and Technology of China (China)
Jianxiang Li, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7658:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology
Yadong Jiang; Bernard Kippelen; Junsheng Yu, Editor(s)

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