Abstract

Temperature was varied over a wide range to determine its effect on the luminescence properties of deuterated phenanthrene and phenanthrene adsorbed on a number of solid matrices. Not only were insights into the effects of temperature and solid matrices on the luminescence properties acquired but also the deuterium isotope effect revealed unique information about the role played by the solid matrix in the luminescence of the model compounds. In addition, comparisons of nonradiative rate constants and the efficiencies of intersystem crossing revealed important differences among the solid matrices in altering these parameters. The perdeuterated phenanthrene and phenanthrene proved to be useful probes for investigating the effects of solid matrices on the excited triplet state of phosphors because the excited singlet state of the lumiphor was affected very little by the solid matrices, and the rate constants of phosphorescence for the two phosphors are essentially the same.

Polymeric Matrices for Organic Phosphors*

Nicholas Geacintov, Gerald Oster, and Thomas Cassen
J. Opt. Soc. Am. 58(9) 1217-1229 (1968)

Steady state molecular luminescence radiance expressions assuming narrowband excitation

G. D. Boutilier, J. D. Winefordner, and N. Omenetto
Appl. Opt. 17(21) 3482-3490 (1978)

Intersystem crossing of F₂ color centers studied by four-wave mixing spectroscopy

S. C. Rand
Opt. Lett. 11(3) 135-137 (1986)

Polarization of Molecular Luminescence in Plastic Media by the Method of Photoselection

M. A. El–Sayed
J. Opt. Soc. Am. 53(7) 797-800 (1963)

Luminescence and photosensitivity of gadolinium labeled hematoporphyrin monomethyl ether

Peng Wang, Feng Qin, Li Wang, Fajun Li, Yangdong Zheng, Yunfei Song, Zhiguo Zhang, and Wenwu Cao
Opt. Express 22(3) 2414-2422 (2014)