Laser‐induced fluorescence of PuF6 in the 3Γ4g→1Γ1g electronic band at room temperaturea)

Autor: Joe J. Tiee, R. T. Walters, W. W. Rice, J. E. Barefield
Rok vydání: 1983
Předmět:
Zdroj: The Journal of Chemical Physics. 79:2621-2625
ISSN: 1089-7690
0021-9606
Popis: When PuF6 is photoexcited at 797.3 nm, fluorescence is observed from the 1 μm electronic energy level. The lifetime τ of the fluorescence signal varies with pressure. The lifetimes cover a range of 655 to 243 ns for a pressure range of 0.5 to 72 Torr. A linear Stern–Volmer relationship was obtained over the complete pressure range considered. An extrapolation to zero pressure yields an intercept of τ0=663 ns and a slope of 3.62×104 Torr−1 s−1. Fluorescence and excitation spectra are reported and are in good agreement with the previously reported absorption spectrum of PuF6.
Databáze: OpenAIRE