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Comparison of high and zero magnetic field values fo non radiative triplet-triplet annihilation rate constants in crystalline anthracene

1970; Elsevier BV; Volume: 5; Issue: 8 Linguagem: Inglês

10.1016/0009-2614(70)85118-1

1873-4448

J. Fourny, G. Delacôte,

Luminescence and Fluorescent Materials

Abstract Experimental indications are given which show that the non-radiative triplet-triplet annihilation rate constant (ARC) γnr in anthracene has the same value at high (3 kOe) and zero magnetic field. From the anisotropy of the negative magnetic field effect on the electron-hole recombination emitted light, it is also shown that γnr/γr = 1.5 ± 0.3, where γr is the radiative ARC. Electron-hole recombination, triplet and singlet creation yields in the recombination process are also identical at high and zero fields.