Would elderberry extract/concentrate work? Can you mix it with anything to make it stronger?
I recently read your article on dye-sensitized solar cells while researching the topic. I am doing a similar experiment and was planning on using elderberry extract/concentrate (I am too young to buy the wine) to dye the solar cell. I am prohibited from using red cabbage or passion tea but I need to obtain the highest possible voltage value for my solar cell. If you have any suggestions on how to make the cell more efficient it would be greatly appreciated!