Manufacture of brightness enhancement films (BEFs) by ultraviolet (UV) irradiation and their applications for organic light emitting diodes (OLEDs)

作者：Lin Jian Shian^*; Lin Shih Hsun; Chen Nien Po; Ko Cheng Hao; Tsai Zong Sian; Juang Fuh Shyang; Chen Chen Ming; Liu Lung Chang

来源：Synthetic Metals, 2010, 160(13-14): 1493-1500.

DOI：10.1016/j.synthmet.2010.05.009

• OLED
• Brightness enhancement film
• Ultraviolet

By ultraviolet (UV) irradiation, brightness enhancement films (BEFs) have been successfully manufactured with UV-curable polymers and applied for organic light emitting diodes (OLEDs).
With BEFs, either green OLEDs (BEF/ITO glass/NPB (30 nm)/Alq(3) (65 nm)/LiF (0.5 nm)/Al (100 nm)) or white OLEDs (BEF/ITO glass/TAPC (40 nm)/mCP:Os:Firpic mixture (weight ratio = 82:17:1; 25 nm)/BCP (15 nm)/Alq(3) (30 nm)/LiF (0.5 nm)/Al(150 nm)) exhibit better electroluminescent performances than those without BEFs. In case of green OLEDs, the luminance and electroluminescent yield with 45 degrees compound BEFs are, respectively, 1.51-fold and 1.42-fold (at 9V, 60 mA/cm(2)) larger than those without BEFs. In case of white OLEDs, moreover, the luminance and electroluminescent yield with 45 degrees compound BEFs are, respectively, 1.28-fold and 1.21-fold (at 9V, 16 mA/cm(2)) larger than those without BEFs.

• 出版日期2010-7