Efficient Protection of Silver Nanowire Transparent Electrodes by All-Biorenewable Layer-by-Layer Assembled Thin Films

Abstract

An efficient protection strategy for silver nanowirebased transparent electrodes (AgNW TEs) is developed to enhance their poor adhesion force on substrates and thermal, optical, chemical, and electrical stabilities. Chitin nanofibers (CNFs) and alkali lignin (AL), which possess high mechanical property, a gas/ moisture barrier, and UV absorption properties, are successively assembled on AgNW TEs through layer-by-layer (LBL) assembly based on their oppositely charged surfaces. The formation of LBLassembled CNFs and AL (CNF/AL) 10 bilayers, where 10 is the optimized number of bilayers, on the aldehyde-modified AgNW (Al-AgNW) TEs does not deteriorate their electrical conductivity (17.3 ± 2.1 Ω/□) and transmittance (90.

Metal nanowire-based transparent electrode for flexible and stretchable optoelectronic devices

“…226 Chitin nanofibers (CNFs) and alkali lignin (AL) have been used to encapsulate AgNWs via layer-by-layer assembly in a solution. 228 Considerable enhancements in adhesion as well as thermal, optical, chemical, and electrical durability have been achieved. Compared to vacuum deposition and magnetron sputtering, solution processing is a more efficient and cost-effective strategy.…”