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Proceedings Paper

Tailoring hole transport and color tunability in organic light-emitting devices using single-wall carbon nanotubes
Author(s): Richard Czerw; H.S. Woo; David L. Carroll; John M. Ballato; P.M. Ajayan
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Paper Abstract

Controlling carrier transport in light emitting polymers is a crucial factor for their efficient use in any organic opto-electronic device. In this work, we demonstrate a novel method of utilizing the interactions between single wall carbon nanotubes (SWNTs) and conjugated polymers to modify the overall mobility of charge carriers within nanotube- polymer nanocomposites. Using a unique, double emitting- organic light emitting diode (DE-OLED) structure, we characterize the hole transport within electroluminescent nanocomposites (nanotubs in poly (m-phenylene vinylene-co- 2,5-dioctoxy-p-phenylene) (PmPV)) and show that devices with chromic tunability can be achieved. This leads naturally to a model for hole transport in SWNT - PmPV blends that provides fundamental insights into the formation of discrete hole traps and the modification to hole mobility. Perhaps more importantly however, these results are suggestive of the significant role that SWNT nanocomposites can play in future organic-based photonic systems such as fully organic optical amplifiers, transistors, and color displays.

Paper Details

Date Published: 19 November 2001
PDF: 9 pages
Proc. SPIE 4590, BioMEMS and Smart Nanostructures, (19 November 2001); doi: 10.1117/12.454598
Show Author Affiliations
Richard Czerw, Clemson Univ. (United States)
H.S. Woo, Clemson Univ. (United States)
David L. Carroll, Clemson Univ. (United States)
John M. Ballato, Clemson Univ. (United States)
P.M. Ajayan, Rensselaer Polytechnic Institute (United States)

Published in SPIE Proceedings Vol. 4590:
BioMEMS and Smart Nanostructures
Laszlo B. Kish; Erol C. Harvey; William B. Spillman, Editor(s)

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