Enhancing Conductivity of Silver Nanowire Networks through Surface Engineering Using Bidentate Rigid Ligands

• DOI: 10.1021/acsami.3c15207
• Publication Date: 2024-01-10T15:28:59Z
• Authors: Wing Chung Liu; Joseph C. A. Pren...; Christopher E. Pa...; Andrew A. R. Watt
• Keywords: Nanomaterials; Silver nanoparticle

Solution processable metallic nanomaterials present a convenient way to fabricate conductive structures, which are necessary in all electronic devices. However, they tend require post-treatments remove the bulky ligands around them achieve high conductivity. In this work, we method formulate post-treatment free silver nanowire ink by controlling type of nanowires. We found that bidentate with rigid molecular structure were effective improving conductivity networks as could maximize number linkages between neighboring addition, DFT calculations also revealed good LUMO energy alignment more effective. Because these reasons, fumaric acid was be most ligand and achieved large reduction sheet resistance 70% or higher depending on network density. The concepts elucidated from study would applicable other solution systems such quantum dots for photovoltaics LEDs charge transport being nanoparticles.