Patent ID: 8058387

Claim:
A soluble polythiophene derivative of formula (I) or (II): wherein R is hydrogen, alkyl, hydroxy, halogen, cyano (â€”CN), nitrous (â€”NO 2 ), amino, substituted or unsubstituted aryl, or substituted or unsubstituted oxadiazolopyridine, pyridopyrazine, benzooxadiazole, thiadiazolopyridine, selenophene, thiadiazoloquinoxaline, thienopyrazine, quinoxaline or diketopyrrolopyrrole; Ar is substituted or unsubstituted arylene or thiadiazoloquinoxaline, thienopyrazine, quinoxaline or diketopyrrolopyrrole; and m and n are the numbers of repeating units, where m is an integer between 2 and 1000, and n is an integer between 0 and 100.