• Basak, Supratim
• Mohiddon, Md Ahamad
• Müllen, Klaus
• Baumgarten, Martin
• Chandrasekar, Rajadurai

Abstract

<jats:title>Abstract</jats:title><jats:p>We introduce a cost-effective, yet feasible reactive printing approach namely, “coordination chemistry at the conjugated ligand polymer surface”. By using a contact printing technique we selectively fabricated high resolution nano-pixel configurations consisting of red, blue and green (R,G,B) colors arranged in a hierarchical three-dimensional fashion. For this, we have synthesized a novel blue emitting conjugated ligand polymer, [poly(4′-octyl-2′,6′-bispyrazoyl pyridine)] ("Equation missing"<!-- image only, no MathML or LaTex --> ~ 7–8 KDa) having a tridentate ligand in its repeating unit which forms a thin film prone of binding metal ions. On top of this ligand polymer film, a layer of high-resolution cross-stripes (width ca. 800 nm) was printed comprised of Eu and Tb ions over a large area ~ 100 × 100 μm<jats:sup>2</jats:sup>. The final woodpile-like assembly produced a new pixel group consisting of B; BG; BR; and BGR (White) colors. The area of the white emitting square is ca. 0.64 μm<jats:sup>2</jats:sup>. The patterned layers that make up the pixels are very thin and thus this new technique might find applications in flexible light emitting devices.</jats:p>

Topics

• impedance spectroscopy
• surface
• polymer
• thin film
• reactive