We have investigated the temperature dependence of the absorption spectrum of the one-dimensional metal complex (Pt(dmg)2) and the relaxation dynamics of its photo-excited states using a femtosecond pump-probe method. At lower temperature than 150K, four peaks(P1-P4) appear in the region of the absorption band due to the metal chain, where P1 and P2 are dominant components in the absorption at 90K although they are very small at 300K. In the pump and probe spectroscopy at 90K ,the bleaching first rises up very rapidly(<200fs) and decays within lps in the energy region of P1. This is followed by slower rise-up with the time constant of 60ps. The slow component of the bleaching is due to the increase of the lattice temperature. The relaxation processes in Pt(dmg)2 are discussed.
|Number of pages||4|
|Journal||Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals|
|Publication status||Published - 1997|
ASJC Scopus subject areas
- Condensed Matter Physics