偏極化高分子發光二極體之研究

Abstract

本論文係利用導電水溶性高分子溶液(PEDOT:PSS)混合高分子材料PVA製作新型配向膜層，並使用目前配向製程中最廣泛與簡易的機械力研磨配向來製作偏極化高分子發光二極體，利用此種構想我們成功地製作出可發線性偏極化光之高分子發光二極體，並且發現與討論不同陰極結構LiF/Ca/Al、BCP/Ca/Al對於偏極化率、電流效率、光色的影響，其中線性光偏極化率最高可達28.6，同時其亮度超過850cd/m2。

One novel conducting alignment layer, fabricated by blending conducting polymer “PEDOT:PSS” with water-soluble polymer, polyvinylalcohol, has been demonstrated successfully to align polyfluorenes by mechanical rubbing technique. The alignment layer has been also used to fabricate polarized polymer light-emitting diodes (PLEDs). Highly polarized emission with an integrated dichroic ratio up to 28.6 and high luminance with more than 850 cd/m2 has been observed from the polarized PLED after adapting different kinds of cathode structures.