| abstract |
An inorganic reaction system comprising a lead-tellurium-zinc composition of the formula 1: Pb a -Te b -Zn f -M d -O e wherein 0 <a, b, d, or f ≤ 1, the sum of b, d and f is 1, 0? d? 0.5, 0 <f? 0.2, a: b is about 10:90 and about 90:10, (a + f + d) 90 and about 90:10, M is at least one element, and e is a number sufficient to balance the Pb, Te, Zn, and M components. |