Physics, asked by mnavneeth3124, 1 year ago

Why nanosemiconductors with different size show different colour?

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Answered by Anonymous
0
Hey Mate


Gold nanoparticles interaction with light is strongly dictated by their environment, size and physical dimensions.

Small (~30nm) monodisperse gold nanoparticles absorb light in the blue-green portion of the spectrum (~450 nm) while red light (~700 nm) is reflected, yielding a rich red color. This absorption is due to surface plasmon resonance.



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