Answer to Question #120683 in Inorganic Chemistry for Yuki

Question #120683
What is the difference between intrinsic and extrinsic defects? Which are likely to lead to higher ionic conductivity and Why?
Expert's answer

Intrinsic defects are generated due to the presence of impurity in the materials, where as extrinsic defects are created due to some other effect such as effect of high energy ionizing irradiation effects. All the defects present in the sample will show its characteristic absorption in the visible range. Difference spectrum of the sample before and after irradiation can give different absorption peaks, which can be identified based on their nature..At low T conductivity is dominated by mobility of extrinsic defects At High T, conductivity is due to thermally formed (intrinsic) defects

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