Probing Light-Matter Interactions: Fluorescence Lifetime Manipulation in a Crystalline Colloidal Array.

ABSTRACT: The connection between a structured environment and the decay kinetics of an embedded emitter is explored by copolymerizing a naphthalimide derivative within polystyrene-based nanoparticles. The nanoparticles spontaneously self-assemble into a crystalline colloidal array, resulting in a partial photonic bandgap, or rejection wavelength, in the visible regime. The rejection wavelength of the liquid ordered array can be shifted across the emission spectrum of the nanoparticles by dilution with deionized water, which increases the interparticle spacing of the array. Time-resolved fluorescence of the ordered array at various rejection wavelength conditions is monitored at high- and low-energy electronic transition frequencies across the emission spectrum of the naphthalimide-copolymerized nano

SUBMITTER: Jones HW 

PROVIDER: S-EPMC11635496 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature