|MadSci Network: Chemistry|
Dear Joe, As I read your question, I understand that you are actually asking how glow-in-the-dark object absorb light. In the MadSci database, many people have already asked about that topic. So, in order to not reinvent the wheel, I suggest you to use our search engine and search for the text "glow in the dark" with "find the exact phrase" turned on, and you will find some useful answers. Hope this help, Daniel
Try the links in the MadSci Library for more information on Chemistry.