Triplet Decay Pathways of the Electrically Conducting Polymer Poly[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene] Poly[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene] Poly[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene]
EMSL Project ID
3486
Abstract
Poly[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) is an electrically conductive polymer that is under active investigation for use as a photoinduced electron transfer donor in high-efficiency photocells based on organic materials. An understanding of the conditions that maximize the efficiencies of photocells based on MEH-PPV requires detailed knowledge of the photophysical properties of the MEH-PPV triplet state.The triplet state decay pathways of MEH-PPV will be studied via time-resolved transient grating and transient absorption spectroscopy. The rate constants for the major triplet decay pathways will be simultaneously obtained by fitting an appropriate kinetic model to the observed transient grating signals. The role of the surrounding environment in the triplet state decay of MEH-PPV will also be studied by carrying out these studies in both liquid solution and in thin films of MEH-PPV/inert polymer blends of varying concentrations.
Project Details
Project type
Exploratory Research
Start Date
2003-06-30
End Date
2005-07-05
Status
Closed
Released Data Link
Team
Principal Investigator