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

Hydrophobic Poly(tert‐butyl acrylate) Photonic Crystals towards Robust Energy‐Saving Performance

“…[1] As as olution, energy-saving devices derived from PL enhanced films have aroused increasing attention owing to their merits of low power consumption and economic advantages. Linsgroup [5] constructed the UV-curable polymer served as refracting films,w hich concentrated the incident light and raised the PL intensity of organic LEDs.A lthough the functional polymer films can improve the PL intensity with aw ide range of wavelengths,t he low PL efficiency, however, limits their further applications.I fP Le nhanced films can be vastly fabricated for ordered ensembles by the aid of inherent driving force,avariety of robust energy-saving films will be realized, and such am ethod can definitely provide new opportunities for energy-saving devices. Linsgroup [5] constructed the UV-curable polymer served as refracting films,w hich concentrated the incident light and raised the PL intensity of organic LEDs.A lthough the functional polymer films can improve the PL intensity with aw ide range of wavelengths,t he low PL efficiency, however, limits their further applications.I fP Le nhanced films can be vastly fabricated for ordered ensembles by the aid of inherent driving force,avariety of robust energy-saving films will be realized, and such am ethod can definitely provide new opportunities for energy-saving devices.…”

“…[1] As as olution, energy-saving devices derived from PL enhanced films have aroused increasing attention owing to their merits of low power consumption and economic advantages. [2] However,o ne of the main challenges for PL enhanced films in energy-saving device is low PL enhanced efficiency, which greatly limits their practical applications.U pt on ow,g reat efforts have been made through the special surface geometry on polymer films, [3] such as plasma etching process, [4] ultraviolet (UV) irradiation process [5] and super-hydrophobic polymer films, [6] to improve the overall performance of PL enhanced films.I nt his respect, Wongun Jang and co-workers [3] prepared the polycarbonate and polymethyl methacrylate (PMMA) film with upright pyramid geometry,w herein the brightness of light emitting diodes (LED) could be increased by 13-14 %o wing to the uniform high lightextraction. Linsgroup [5] constructed the UV-curable polymer served as refracting films,w hich concentrated the incident light and raised the PL intensity of organic LEDs.A lthough the functional polymer films can improve the PL intensity with aw ide range of wavelengths,t he low PL efficiency, however, limits their further applications.I fP Le nhanced films can be vastly fabricated for ordered ensembles by the aid of inherent driving force,avariety of robust energy-saving films will be realized, and such am ethod can definitely provide new opportunities for energy-saving devices.…”