Using Au 198 und Ag 110m as tracers the diffusion of gold and silver is measured in bulk samples of glassy As2Se3. In doped arsenic selenide the temperature dependence of the diffusion coefficient D obeys the following Arrhenius equations: DAg = 3 exp (−0.89 eV/kT) cm2/s; DAu = 6 exp (−1.15 eV/kT) cm2/s. Doping with Ge remains DAu and DAg unchanged, Cu doping markedly decreases the diffusion. The results are discussed with respect to the diffusion mechanism.
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