The electronic structure of oriented poly [2-methoxy-5-(2’-ethyl-hexyloxy)-1,4-phenylene-vinylene]

Authors

• D.K. Chambers, Louisiana Tech University, Institute for Micromanufacturing, Electrical Engineering Program
• S. Karanam, Louisiana Tech University, Institute for Micromanufacturing, Electrical Engineering Program
• D. Qi, Louisiana Tech University, Institute for Micromanufacturing, Electrical Engineering Program
• Sandra Zivanovic Selmic, Louisiana Tech UniversityFollow
• Yaroslav B. Losovyj, Louisiana State University at Baton RougeFollow
• Luis G. Rosa, University of Nebraska-LincolnFollow
• Peter A. Dowben, University of Nebraska-LincolnFollow

Document Type

Article

Date of this Version

3-1-2005

Comments

Published in Applied Physics A 80 (2005), pp. 483–488. Copyright © Springer-Verlag 2004 . Used by permission. http://www.springerlink.com/content/1432-0630/.

Abstract

Poly[2-methoxy-5-(2’-ethyl-hexyloxy)-1,4-phenylene-vinylene] (MEH-PPV) adopts a preferential orientation on indium tin oxide. Although the basic building block of this polymer provides a negligible overall point-group symmetry, the polymer MEH-PPV packs with sufficient order to exhibit band structure. The polymer is fragile with bond cleavage evident following both argon-ion impact and ultraviolet radiation, but annealing leads to the restoration of much of the bond order.