Why nanosemiconductors with different size show different colour?
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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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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.
hope this answer helps you
please mark it as brainliest
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