The composition 7, wherein in the photosensitizer, at least one of the halogenated R1, R2, R3, R4, R5 and R6 is —NRn X, wherein R is hydrogen or {HEAD ~ straight chain alkyl group} consisting of {TAIL ~ one to 6 carbon atoms}, n is an integer from 0 to 6, and X is selected from the group consisting of chlorine, bromine and iodine 
The composition 7 , wherein in the photosensitizer , at least one of the halogenated R1 , R2 , R3 , R4 , R5 and R6 is — NRn X , wherein R is hydrogen or { HEAD ~ straight chain alkyl group } consisting of { TAIL ~ one to 6 carbon atoms } , n is an integer from 0 to 6 , and X is selected from the group consisting of chlorine , bromine and iodine
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