A cheaper and more flexible alternative to indium tin oxide

https://phys.org/news/2023-03-cheaper-flexible-alternative-indium-tin.html

"way to make PBDF (unlike indium tin oxide, ITO, which is expensive, rigid and toxic), a type of transparent conducting material, at an easily synthesized scale...  creating PBDF using water and air to initiate bonds, along with a copper-based catalyst... film allowed 80% of light to pass through, which is similar to ITO. They also found it remained stable over 20 days of exposure to temperature changes, from −20 to 65 °C... smartphones and tablet computers"