Patent ID: 7671202

Claim:
An n-type semiconductor compound having formula I: wherein: each of R 1 -R 8 independently is selected from H, —NO 2 , —CN, halide, —SO 3 H, —N + H 3 , —N + H 2 (alkyl), —N + H(alkyl) 2 , —N + (alkyl) 3 , —C(O)R, —CO 2 R, an alkyl moiety, a substituted alkyl moiety, a cycloalkyl moiety, a substituted cycloalkyl moiety, an aryl moiety, a substituted aryl moiety, a polycyclic aryl moiety, and a substituted polycyclic aryl moiety, wherein each of the alkyl moiety, the substituted alkyl moiety, the cycloalkyl moiety, the substituted cycloalkyl moiety, the aryl moiety, the substituted aryl moiety, the polycyclic aryl moiety, and the substituted polycyclic aryl moiety comprises at least one of —NO 2 , —CN, halide, —SO 3 H, —N + H 3 , —N + H 2 (alkyl), —N + H(alkyl) 2 , —N + (alkyl) 3 , —C(O)R, and —CO 2 R, and at least one of R 1 , R 4 , R 5 , and R 8 is —CN; R 9 and R 10 independently are selected from H, an alkyl moiety, a substituted alkyl moiety, a cycloalkyl moiety, a substituted cycloalkyl moiety, an aryl moiety, and a substituted aryl moiety, wherein each of the alkyl moiety, the substituted alkyl moiety, the cycloalkyl moiety, the substituted cycloalkyl moiety, the aryl moiety, and the substituted aryl moiety optionally comprises —NO 2 , —CN, halide, —SO 3 H, —N + H 3 , —N + H 2 (alkyl), —N + H(alkyl) 2 , —N + (alkyl) 3 , —C(O)R, or —CO 2 R, each methylene (—CH 2 —) in the alkyl moiety or the substituted alkyl moiety optionally is replaced with a heteroatom selected from O and N, and each methene (—CH═) in the aryl moiety or the substituted aryl moiety optionally is replaced with a heteroatom selected from O and N; and R, at each occurrence, is H, an alkyl moiety, or phenyl.