Exciton dynamics in a disordered conjugated polymer: Three-pulse photon-echo and transient grating experiments

Abstract

We study the sub-picosecond exciton dynamics of the prototypical soluble conjugated polymer poly[2-(2'-ethylhexyloxy)-5-methoxy-1,4-phenylenevinylene] (MEH-PPV) by comparative three-pulse photon-echo peak-shift and transient grating measurements, performed under excitation energy tuning conditions.

Keywords

• Exciton
• dynamics
• disordered
• conjugated
• polymer
• Three-pulse
• photon-echo
• transient
• grating
• experiments