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One of the most promising approaches to produce industrial-compatible Transparent Conducting Materials (TCMs) with excellent characteristics is the fabrication of TCO/metal/TCO multilayers. In this article, we report on the electro-optical properties of a novel high-performing TCO/metal/TCO structure in which the intra-layer is a micro-structured metallic grid instead of a continuous thin film. The grid is obtained by evaporation of Ag through a mask of polystyrene colloidal micro-spheres deposited by the Langmuir-Blodgett method and partially dry-etched in plasma. IZO/Ag grid/IZO structures with different thicknesses and mesh dimensions have been fabricated, exhibiting excellent electrical characteristics (sheet resistance below 10 Ω/□) and particularly high optical transmittance in the near-infrared spectral region as compared to planar (unstructured) TCM multilayers. Numerical simulations were also used to …
Publication date: 
1 Aug 2019

Giacomo Torrisi, João S Luis, Olalla Sanchez-Sobrado, Rosario Raciti, Manuel J Mendes, Hugo Águas, Elvira Fortunato, Rodrigo Martins, Antonio Terrasi

Biblio References: 
Volume: 197 Pages: 7-12
Solar Energy Materials and Solar Cells