In general, decoration can alter the surface properties of nanostructures, thereby affecting their optical properties. For example, optical parameters such as reflectivity, transmittance, absorption coefficient, etc. of nanostructures can be changed by using different coating materials or treatment methods. In addition, decoration can introduce new defects or interfaces that may also affect the optical properties of nanostructures. Therefore, the effects of decoration on the optical properties of nanostructures are multifaceted and complex.

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