For example, preferred naphthalocyanine compounds for this application are those as depicted in FIG. 7, where X is hydrogen or electron donating groups, such as amino, hydroxyl, alkoxy, aryloxy, phenyl, alkyl and the like and D is the donor dye covalently attached to the naphthalocyanine derivative at a distance which allows for energy transfer between the donor and acceptor. [0070] By applying th