Printed Electroluminescent Displays on Wood Veneers: a Novel Approach for Smart Surfaces

This paper presents the fabrication and characterization of a printed electroluminescent (EL) display on wood veneers. The display consists of a four-layer structure: bottom electrode, dielectric, electroluminescent layer, and top electrode, all fabricated using screen-printing techniques. Silver nanowire ink was used for both electrodes due to its conductivity and transparency, while a transparent dielectric was printed between them. The display emits blue light with a peak at 455 nm and a luminance of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$15.7 ~\text{cd}/\mathrm{m}^{2}$</tex>, indicating the potential of this technology for integrating smart lighting solutions into sustainable wood-based materials. The work highlights the feasibility of using printed electronics for creating functional, environmentally friendly displays directly on natural substrates.