Patent ID: 7749408

Claim:
A composite, comprising: (a) a chromophore compound having a π-electron donor group electronically conjugated to a π-electron acceptor group through π-electron bridge group, the compound having the formula: D 1 -π 1 -B 1 -π 2 -A 1 wherein D 1 is a π-electron donor group, B 1 is a π-electron bridge group, A 1 is a π-electron acceptor group, π 1 is a π bridge electronically conjugating D 1 to B 1 , π 2 is a π bridge electronically conjugating B 1 to A 1 , wherein π 1 and π 2 may each be present or absent; and (b) a dendronized chromophore compound having a π-electron donor group electronically conjugated to a π-electron acceptor group through π-electron bridge group, the compound having the formula: D 2 -π 3 -B 2 -π 4 -A 2 wherein D 2 is a π-electron donor group, B 2 is a π-electron bridge group, A 2 is a π-electron acceptor group, π 3 is a π bridge electronically conjugating D 2 to B 2 , π 3 is a π bridge electronically conjugating B 2 to A 2 , wherein π 3 and π 4 may each be present or absent, wherein one or more of the donor, bridge, or acceptor groups is substituted with a dendron; and wherein D 1 and D 2 are the same or different, B 1 and B 2 are the same or different, A 1 and A 2 are the same or different, and π 1 , π 2 , π 3 , and π 4 are the same or different.