Volume 113, Issue 10, 08 September 2000
Index of content:
Rotational symmetry control of electronic relaxation in ultracold gaseous molecules: Optical–optical double resonance probe of the forbidden intersystem crossing in jet-cooled thiophosgene,113(2000); http://dx.doi.org/10.1063/1.1290467View Description Hide Description
Two-color optical–optical double resonance studies of the intersystem crossing in jet-cooled thiophosgene indicate that rotational symmetry strongly influences the efficiency of an intersystem crossing in symmetric molecules with low degrees of rotational excitation.
Temperature and field dependence of the charge injection from metal electrodes into random organic media113(2000); http://dx.doi.org/10.1063/1.1290697View Description Hide Description
We consider the average injection rate from a metal electrode into disordered organic media, and its field dependence for a fixed density of carriers in the metal. At sufficiently high field the injection occurs through particular pathways, lowering the energetic barrier between the metal Fermi energy and the molecular levels of the organic layer. Assuming a Gaussian distribution of random energies, we find the dependence of currentj on field in the relevant domain of electric fields. This behavior agrees both with numerical simulations of three-dimensional systems and with experimental data.