Patent ID: 8242227

Claim:
A doped polysilane of the formula H-[A a H b (DR x ) m ] q -[(A c H d R 1 e ) n ] p —H, where each instance of A is independently Si or Ge; D is B, P, As or Sb; each instance of R is independently alkyl, alkylene, aralkyl, substituted aralkyl, aryl, arylene or substituted aryl, and when an instance of x=2, the two R groups may form a ring together with D; q is at least 1, but q≧2 when p=0; each of the q instances of a is independently at least 1; each of the q instances of b is independently an integer of from 1 to 2a; each of the q instances of m is an integer of from 1 to a; each of the q*m instances of x is independently 1 or 2; each instance of R 1 is independently H, -A f H f+1 R 2 f , halogen, aryl or substituted aryl; each of the p instances of n is independently at least 1; each of the p*n instances of c is independently an integer of at least 1; each of the p*n instances of d is independently an integer of from c to 2c; each of the p*n instances of e is independently an integer of from 0 to c; and the sum of the p instances of n*c≧4 when q =1.