| http://www.w3.org/ns/prov#value | - In these embodiments, the amount or concentration of the antioxidants, such as the hindered phenol is present in the lowest amount in the first or bottom charge transport region or layer and is present at higher or increasing amounts in the succeeding charge transport regions or layers, with the highest amount of the hindered phenol being present in the top charge transport region or layer.
|
