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How crystal defects influences its mechanical, electrical and optical behaviour?
Thank you for explaining that. Can you give me an example of a crystal defect that has a significant impact on mechanical, electrical, and optical behavior?
Sure, one example of such a defect is a dislocation. Dislocations are defects in the crystal structure that occur when planes of atoms are shifted relative to one another. Dislocations can weaken the crystal's mechanical properties, create charge carriers that affect its electrical properties, and cause scattering or absorption of light that affects its optical properties.