We thank our colleagues R. Gutierrez, T. Blanton, J. Fornalik, B. Houghtaling, and J. Breitfeller for their analytical and experimental contributions.
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Full Paper
Continuous, Atmospheric Process to Create Organic Clusters and Nanostructured, Functional Films†
Article first published online: 31 JAN 2006
DOI: 10.1002/adfm.200500601
Copyright © 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Jagannathan, R. and Mehta, R. V. (2006), Continuous, Atmospheric Process to Create Organic Clusters and Nanostructured, Functional Films. Adv. Funct. Mater., 16: 633–639. doi: 10.1002/adfm.200500601
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Publication History
- Issue published online: 7 MAR 2006
- Article first published online: 31 JAN 2006
- Manuscript Accepted: 11 OCT 2005
- Manuscript Received: 25 JUL 2005
- Abstract
- References
- Cited By
Keywords:
- Conjugated polymers;
- Light-emitting diodes, organic;
- Supercritical fluids;
- Superhydrophobicity;
- Thin films, deposition
Abstract
An atmospheric process based on compressed CO2 is used to create stable clusters of small organic molecules. These clusters, 1–10 nm in size, are used as building blocks to assemble thin films on various substrates. Cluster assembly of these films is verified by using low-angle X-ray diffraction. The surface quality of these cluster-assembled films is similar to that of films usually prepared via the vacuum process. Several functional organic light-emitting diode devices have been prepared, in which only the doped emissive layer has been deposited by our process. The radiometric features and efficiencies of these devices match those of vacuum-built devices. Atomic force microscopy of these molecular clusters reveals that they are liquid-like at standard atmospheric conditions. Coatings of these clusters on cloth and stainless steel have been found to be superhydrophobic in nature.