Researchers have developed a potential sustainable material known as transparent wood that could be used in a variety of applications, including smartphone screens and insulated windows. Transparent wood is created by removing lignin, the glue that holds wood cells together, and replacing it with a substance like epoxy resin that renders the wood transparent. Tests have shown that transparent wood is three times stronger than transparent plastics and ten times tougher than glass. It also has better insulation properties than glass, making it a promising option for architectural features like windows. French company Woodoo is already using a similar process to create wood screens for digital displays.
https://arstechnica.com/science/2023/12/why-scientists-are-making-transparent-wood/