Comparison of conjugated polymer deposition techniques by photoluminescence spectroscopy

TitleComparison of conjugated polymer deposition techniques by photoluminescence spectroscopy
Publication TypeJournal Article
Year of Publication2009
AuthorsLantz, KR, Pate, R, Stiff-Roberts, AD, Duffell, AG, Smith, ER, and Everitt, HO
JournalJournal of vacuum science & technology. B, Microelectronics and nanometer structures : processing, measurement, and phenomena : an official journal of the American Vacuum Society
Volume27
Issue5
Start Page2227
Pagination2227 - 2231
Date Published01/2009
Abstract

The effects of various deposition techniques on the photoluminescence spectra of the conjugated polymer poly[2-methoxy-5-(2′ -ethylhexyloxy)-1,4-(1-cyanovinylene) phenylene] (MEH-CN-PPV) are investigated. Photoluminescence spectroscopy provides insight to the internal morphology of organic thin films through the identification of interchain or intrachain recombination peaks. Thin films were deposited on glass substrates by drop casting, spin casting, and resonant-infrared matrix-assisted pulsed laser evaporation (RIR-MAPLE) and were compared to the photoluminescence of the polymer in solution. The photoluminescence measurements reported in this article demonstrate that samples deposited by evaporative RIR-MAPLE have an internal morphology similar to that of MEH-CN-PPV in solution, leading to an enhancement of intrachain transitions in the conjugated polymer. © 2009 American Vacuum Society.

DOI10.1116/1.3222855
Short TitleJournal of vacuum science & technology. B, Microelectronics and nanometer structures : processing, measurement, and phenomena : an official journal of the American Vacuum Society