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Inkjet printing of OLEDs (Organic Light‐Emitting Diodes) is a revolutionary technology aimed at large‐size panel production, high OLED material consumption efficiency and lower manufacturing costs. Here we report a novel ink composition for ETL which enables uniform ETL formation with full orthogonality to small‐molecule EML material.

A versatile and facile route to control the composition of plasmonic nanoparticles (NP) aligned in a configuration of two dimensional nano-arrays is presented by applying galvanic displacement reactions on a pre-defined noble metal NP arrays which were prepared from diblock copolymer inverse micelles containing metal precursors.

Abstract:We fabricated titanium dioxide (TiO 2 )-silica (SiO 2 ) nanocomposite structures with controlled morphology by a simple synthetic approach using cooperative sol-gel chemistry and block copolymer (BCP) self-assembly. Mixed TiO 2 -SiO 2 sol-gel precursors were blended with amphiphilic poly(styrene-block-ethylene oxide) (PS-b-PEO) BCPs where the precursors were selectively incorporated into the hydrophilic PEO domains. Changing the volumetric ratio of TiO 2 -SiO 2 sol-gel precursor from 5% to 20%, a stepwise structural inversion occurred from nanodot arrays to discrete nanowires. Template free hybrid inorganic nanostructures were produced after the removal of PS-b-PEO by irradiation of UV light. The morphological evolution and photophysical properties were investigated by microscopic studies, UV-visible absorption and photocatalytic properties. OPEN ACCESSPolymers 2010, 2 491