Just add dendrimers, cellulose and graphene: New eco-friendly, long-lasting light-emitting electrochemical cell

https://phys.org/news/2023-07-dendrimers-cellulose-graphene-eco-friendly-long-lasting.html

"light-emitting electrochemical cells (LECs)... inexpensive biomass derived cellulose acetate electrode, consume less energy... dendrimer with hydrophilic... life extended to over 1000 hours, >10X... graphene can be used as electrode as well... environmentally friendly... only illuminates in yellow, so we need to develop it to illuminate in the three primary light colors"