Microcavity Effect of Top-emission Organic Light-emitting Diodes Using Aluminum Cathode and Anode

Bulletin of the Korean chemical society

Jang-Hyuk Kwon¹  Jong-Wook Park¹  Young-Il Park¹  Chang-Jun Lee¹ 

关键词: Electroluminescence;    Top emitting;    Microcavity;    OLEDs;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

We report microcavity effect of top emission organic light-emitting diodes (OLEDs) by using Al cathode and anode, which are feasible for not only top emission EL and angle dependant effects but facile evaporation process without ion sputtering. The device in case of Alq3 green emission showed largely shifted EL maximum wavelength as 650 nm maximum emission. It was also observed that detection angle causes different EL maximum wavelength and different CIE values in R, G, B color emission. As a result, the green device using Alq3 emission showed 650 nm emission (0o) to 576 nm emission (90o) as detection angle changed. We believe that these phenomena can be also explained with microcavity effect which depends on the different length of light path caused by detection angle.

【 授权许可】

Unknown