Repository landing page

We are not able to resolve this OAI Identifier to the repository landing page. If you are the repository manager for this record, please head to the Dashboard and adjust the settings.
oaioai:collections.lib.utah.edu:ir_uspace/702579

Evidence for excimer photoexcitations in an ordered ?-conjugated polymer film

Authors
Publication date
1 January 2011
Publisher
'American Physical Society (APS)'

Abstract

Journal ArticleWe report pressure-dependent transient picosecond and continuous-wave photomodulation studies of disordered and ordered films of 2-methoxy-5-(2-ethylhexyloxy) poly(para-phenylenevinylene). Photoinduced absorption (PA) bands in the disordered film exhibit very weak pressure dependence and are assigned to intrachain excitons and polarons. In contrast, the ordered film exhibits two additional transient PA bands in the midinfrared that blueshift dramatically with pressure. Based on high-order configuration interaction calculations, we ascribe the PA bands in the ordered film to excimers. Our work brings insight to the exciton binding energy in ordered films versus disordered films and solutions. The reduced exciton binding energy in ordered films is due to energy states appearing below the continuum band threshold of the single strand

Similar works

Full text

thumbnail-image

The University of Utah: J. Willard Marriott Digital Library

redirect
oaioai:collections.lib.utah.edu:i...
Last time updated on 01/01/2020

This paper was published in The University of Utah: J. Willard Marriott Digital Library.

Having an issue?

Is data on this page outdated, violates copyrights or anything else? Report the problem now and we will take corresponding actions after reviewing your request.