Photophysics of the nonconjugated vinyl polymer poly(N-vinylcarbazole) (PNVC) has been explored in the attendance of coumarin 153 (C153) base abiding accompaniment and time-resolved fluorometric techniques. Dual discharge from the two audible excimers of PNVC adds accent to the abstraction and makes it interesting. The abstraction substantiates the accident of Förster resonance activity alteration (FRET) from PNVC to C153. The cogwheel captivation of the two excimers in the activity alteration action has been established. Considering the actuality that FRET is a continued ambit dipole induced phenomenon, this cogwheel aftereffect has been rationalized from a aberration in the dipole moments of the two excimers. Determination of the abatement constants reveals an adjustment of consequence added abatement of the top activity excimer than the low activity one in the attendance of the quencher C153.
More about:Poly(N-vinylcarbazole) suppliers
From:chemical materials
RSS Feed