The Kinetics of Joined Action of Triplet-Triplet Annihilation and First-Order Decay of Molecules in the State in the Case of Nondominant First-Order Process | Zendy

Paweł Borowicz | Zendy; Bernhard Nickel | Zendy

Open Access

The Kinetics of Joined Action of Triplet-Triplet Annihilation and First-Order Decay of Molecules in the State in the Case of Nondominant First-Order Process

Author(s) -

Paweł Borowicz,

Bernhard Nickel

Publication year - 2012

Publication title -

isrn spectroscopy

Language(s) - English

Resource type - Journals

ISSN - 2090-8776

DOI - 10.5402/2012/316037

Subject(s) - annihilation , kinetics , triplet state , anthracene , reaction rate constant , action (physics) , smoluchowski coagulation equation , diffusion , constant (computer programming) , order (exchange) , state (computer science) , chemistry , fick's laws of diffusion , statistical physics , physics , molecule , thermodynamics , quantum mechanics , mathematics , computer science , finance , algorithm , economics , programming language

This paper presents the description of triplet-triplet annihilation in the case of nondominant first-order decay of molecules in the triplet state. The kinetics of the statistical system is influenced by joined action of two processes: the first- and second-order decies. This kinetics can be described with analytical function if the rate parameter of second-order reaction is constant. The approach presented here combines the well-known Smoluchowski formula with the previously published intuitive and non-Fickian models of diffusion-controlled triplet-triplet annihilation. The kinetics of the delayed fluorescence of anthracene is used as a practical example of applicability of the model proposed. The advantages and limits of the proposed model are discussed.

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