caa a22 4500 463223934 CHVBK 20180405153221.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s10853-006-0237-y doi (NATIONALLICENCE)springer-10.1007/s10853-006-0237-y Urbach tail of gadolinium trihydride films [Elektronische Daten] [E. Shalaan, H. Schmitt] The fundamental absorption edge of the gadolinium trihydride has been studied by performing optical transmission measurements at temperatures ranging from 298K to 353K. Urbach tails and the photon absorption spectra give information about the exciton dynamics, distinguishing between free and trapped excitons in the lattice. Our experimental results can be accounted for in terms of the theory of Toyozawa and co-workers, which ascribe the Urbach tail to the momentary localization of excitons due to phonon interaction. Springer Science+Business Media, LLC, 2007 Shalaan E. Technical Physics, Saarland University, 66123, Saarbruecken, Germany aut Schmitt H. Technical Physics, Saarland University, 66123, Saarbruecken, Germany aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/9(2007-05-01), 3255-3258 0022-2461 42:9<3255 2007 42 10853 https://doi.org/10.1007/s10853-006-0237-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0237-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shalaan E. Technical Physics, Saarland University, 66123, Saarbruecken, Germany aut NATIONALLICENCE 700 1- Schmitt H. Technical Physics, Saarland University, 66123, Saarbruecken, Germany aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/9(2007-05-01), 3255-3258 0022-2461 42:9<3255 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer