DOI: 10.1002/adfm.200305045. Stabilized Blue Emission from Polymer

Stabilized Blue Emission from Polymer–Dielectric Nanolayer Nanocomposites

10.1002/adfm.200305045

Crossref journal-article

Wiley

Advanced Functional Materials (311)

Abstract

AbstractBlue‐light‐emitting polymer (polyfluorene)/dielectric nanolayer nanocomposites were prepared by the solution intercalation method and employed in an electroluminescent (EL) device. Their photoluminescence (PL) and electroluminescence characteristics demonstrates that the interruption of interchain interaction in intercalated organic/inorganic hybrid systems reduces the low‐energy emission that results from keto‐defects. By reducing the probability that the excitons initially generated on the polyfluorenes will find keto‐defects, both the color purity and the luminescence stability were improved. Furthermore, the dielectric nanolayers have an aspect ratio of about five hundred, and therefore act as efficient exciton blocking layers and barriers to oxygen diffusion, producing a dramatic increase in the device stability. A nanocomposite device with a Li:Al alloy cathode gave a quantum efficiency of 1.0 %(ph/el), which corresponds to an approximate five times enhancement compared to the neat polymer device. The nanocomposite emitting layer is considered to have a pseudo‐multiple quantum well structure.

Bibliography

Park, J. H., Lim, Y. T., Park, O. O., Kim, J. K., Yu, J. W., & Kim, Y. C. (2004). Stabilized Blue Emission from PolymerâDielectric Nanolayer Nanocomposites. Advanced Functional Materials, 14(4), 377â382. Portico.

Authors 6

J. H. Park (first)
Y. T. Lim (additional)
O O. Park (additional)
J. K. Kim (additional)
J. W. Yu (additional)
Y. C. Kim (additional)

References 28 Referenced 25

Dates

Type	When
Created	21 years, 4 months ago (April 19, 2004, 4:21 p.m.)
Deposited	1 year, 10 months ago (Oct. 18, 2023, 7:53 p.m.)
Indexed	1 year, 9 months ago (Nov. 15, 2023, 9:55 a.m.)
Issued	21 years, 4 months ago (April 1, 2004)
Published	21 years, 4 months ago (April 1, 2004)
Published Online	21 years, 4 months ago (April 19, 2004)
Published Print	21 years, 4 months ago (April 1, 2004)

Funders 0

None

BibTeX

@article{Park_2004, title={Stabilized Blue Emission from Polymer–Dielectric Nanolayer Nanocomposites}, volume={14}, ISSN={1616-3028}, url={http://dx.doi.org/10.1002/adfm.200305045}, DOI={10.1002/adfm.200305045}, number={4}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Park, J. H. and Lim, Y. T. and Park, O O. and Kim, J. K. and Yu, J. W. and Kim, Y. C.}, year={2004}, month=apr, pages={377–382} }

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