Improved Color Purity of Green OLED Device Based on Au Thin Film
ZHANG Yan-fei, ZHAO Su-ling*, XU Zheng
Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education, Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044，China
Abstract：Au was used as anode in some kind of organic electroluminescent devices. Sometimes transparent Au electrodes are required, which means that the thickness of Au electrode should be as thin as possible. Therefore, two metals together forming an electrode become a choice. In the present paper, translucent Au/Al layer was inserted to anode side, and OLED device with the structure of ITO/Al (16 nm)/Au (10 nm)/TPD (30 nm)/AlQ (30 nm)/LiF(0.5 nm)/Al was prepared. There is a spectral narrowing phenomenon on the device ITO/TPD (30 nm)/AlQ (30 nm)/LiF (0.5 nm)/Al, and through analysis and experiment it was found that this phenomenon comes from selective permeability to light of Au thin film rather than the microcavity effect. The device maintains wide viewing angle, without the angular dependence. And the color purity of device with Au thin film is improved.
张妍斐，赵谡玲*，徐 征 . 通过插入Au薄膜改善绿光OLED器件的发光色纯度 [J]. 光谱学与光谱分析, 2014, 34(04): 903-905.
ZHANG Yan-fei, ZHAO Su-ling*, XU Zheng . Improved Color Purity of Green OLED Device Based on Au Thin Film . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(04): 903-905.
