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Photoluminescent Nanofibers for Solid-State Lighting Applications

Published online by Cambridge University Press:  31 January 2011

Lynn Davis
Affiliation:
[email protected], RTI International, RTP, North Carolina, United States
Li Han
Affiliation:
Paul Hoertz
Affiliation:
[email protected], RTI International, RTP, North Carolina, United States
Kim Guzan
Affiliation:
[email protected], RTI International, Research Triangle Park, North Carolina, United States
Karmann C. Mills
Affiliation:
[email protected], RTI International, RTP, North Carolina, United States
Howard J. Walls
Affiliation:
[email protected], RTI International, RTP, North Carolina, United States
Teri A. Walker
Affiliation:
[email protected], RTI International, RTP, North Carolina, United States
Damaris Magnus-Aryitey
Affiliation:
[email protected], RTI International, RTP, North Carolina, United States
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Abstract

Photoluminescent nanofibers (PLN) can be formed by combining electrospun polymeric nanofibers and luminescent particles such as quantum dots (QD). The physical properties of PLNs are dependent upon many different nanoscale parameters associated with the nanofiber, the luminescent particles, and their interactions. By understanding and manipulating these properties, the performance of the resulting optical structure can be tailored for desired end-use applications. For example, the quantum efficiency of quantum dots in the PLN structure depends upon multiple parameters including quantum dot chemistry, the method of forming the PLN nanocomposites, and preventing agglomeration of the quantum dot particles. This is especially important in solution-based electrospinning environments where some common solvents may have a detrimental effect on the performance of the PLN. With the proper control of these parameters, high quantum efficiencies can be readily obtained for PLNs. Achieving high quantum efficiencies is critical in applications such as solid-state lighting where PLNs can be an effective secondary conversion material for producing white light. Methods of optimizing the performance of PLNs through nanoscale manipulation of the nanofiber are discussed along with guidelines for tailoring the performance of nanofibers and quantum dots for application-specific requirements.

Type
Research Article
Copyright
Copyright © Materials Research Society 2010

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References

1 Davis, J.L., Walls, H.J. Han, L. Walker, T.A. Tufts, J.A. Andrady, A. Ensor, D.S. in Seventh International Conference on Solid State Lighting, edited by Ferguson, I.T., Narendan, N., Taguchi, T., and Ashdown, I.E., (SPIE Proceedings 6669) pp. 666916-1-666916-9.Google Scholar
2 Andrady, A.L. and Ensor, D.S. U.S. Patent 7, 297, 305 (Nov. 20, 2007).Google Scholar
3 Davis, J. Lynn, Coe-Sullivan, Seth, Shchekin, Oleg, Mishra, K.C. Raukas, Madis, Modi, Rohit, Breen, Craig, and Leibowitz, Mike, Materials Research Society Symposium Proceedings Proceedings, volume 1207 (2010), page 1207–N04.Google Scholar
4 Davis, J.L. Andrady, A. L. Ensor, D.S. Han, L. Walls, H.J. U.S. Patent Application U.S. 20080113214 (submitted November 2006);Google Scholar
5 Ahn, T. S., Al-Kaysi, L., Muller, A.M. Wentz, K.M. and Bardeen, C.J.Self-absorption correction for solid-state photoluminescence quantum yields obtained from integrating sphere measurements,” Review of Scientific Instruments 78 (2007) 086105–1.Google Scholar