New Permeation Rate Measurement for Thin Film Encapsulation of Organic Light Emitting Diodes

摘要：

We have developed a new method to measure the water vapor transmission ratio (WVTR) for thin film encapsulation (TFE) of organic light emitting diodes (OLEDs). It is a nondestructive method to measure WVTR by investigating the change of photoluminescent spectra of organic material. This method can be realized easily by online test. By calibrating the evolution curve (the photoluminescent intensity versus time), we have figured out the relative water transmission which was responded by organic materials. The WVTR of TFE devices is estimated to be about 2.0×10-2gm-2day-1 in a controlled environment of 85% relative humidity (RH) at 38℃. Novel thin film encapsulation devices have also been presented.

作者: Hao zhang Minyan Zhang Renzheng Sang Li Long Bin Wei Tao Feng Jianhua Zhang

作者单位: School of Mechanical & Electronic Engineering and Automation, Shanghai University, Shanghai, 200072, Key Laboratory of Advanced Display and System Applications, Ministry of Education, Shanghai Universi School of Mechanical & Electronic Engineering and Automation, Shanghai University, Shanghai, 200072, The Linde Group, Carl-von-Linde-Strasse 25,85716 Unterchleissheim, Germany

会议类型: 国际会议

会议名称: 2011 12th International Conference on Electronic Packaging Technology & High Density Packaging(2011 电子封装技术与高密度封装国际会议)

会议地点: 上海

会议语种:英文

页码: 1179-1181

在线出版日期: 2011-08-08（万方平台首次上网日期，不代表论文的发表时间）