Patent ID: 8372194

Claim:
A composition, comprising: a) a compound of the formula A x H y , where each A is independently Si or Ge, x is from 3 to 20, and y is from x to (2x+2); and b) at least one dopant of the formula B a R 1 b and/or (R 2 3 A) r A c (BR 1 2 ) s , where a is 1 or 2; b is 3a; each R 1 is independently H, C 2 -C 6 alkyl, aralkyl, aryl, or AR 2 3 , at least a of the b and each of the 2s instances of R 1 is hydrocarbyl having at least 3 carbon atoms, and when at least one of the b instances of R 1 in the formula B a R 1 b is t-butyl or phenyl, at least 1 of the remaining instances of R 1 in the formula B a R 1 b is H, aralkyl, or AR 2 3 ; R 2 is hydrogen, aryl, or A z H 2z+1 ; z is 1 to 4; c is 1 to 4, r+s=2c+2, and s≧1.