Organic - Inorganic Hybrid Luminescent Composite for Solid-state Lighting

Do Ngoc Chung, Le Trac Tuan, Tran Cong Hao, Do Ngoc Hieu, Nguyen Nang Dinh, Pham Hong Duong
Author affiliations

Authors

  • Do Ngoc Chung University of Engineering and Technology
  • Le Trac Tuan
  • Tran Cong Hao University of Engineering and Technology, Vietnam National University, Hanoi
  • Do Ngoc Hieu University of Engineering and Technology, Vietnam National University, Hanoi
  • Nguyen Nang Dinh University of Engineering and Technology, Vietnam National University, Hanoi
  • Pham Hong Duong Institute of Materials Science, Vietnam Academy of Science and Technology

DOI:

https://doi.org/10.15625/0868-3166/23/1/2610

Keywords:

Solid state lighting, organic and inorganic hybrid composite, white light-emitting diodes.

Abstract

White light emitting diodes (WLEDs) made by coating organic and inorganic hybrid composites on blue LED chips. Y3Al5O12:Ce (YAG:Ce) nano inorganic powder prepared by low-temperature Sol-Gel method exhibited broad green emission with the peak at 521 nm. Poly[2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV) polymer has high luminescence efficiency and red emission peak at 590 nm. The white light was obtained by mixing blue light from emission of the blue LED chip - Indium Gallium Nitride (InGaN) and green-red light from the fluorescence of nano- YAG:Ce and MEH-PPV polymer hybrid composite. The hybrid nanocomposite-based WLEDs exhibited broad band emission spectra from blue light to red wavelengths and provided the white light with a CIE-1931 coordinate of x = 0.2986, y = 0.2620 and a colour rendering index Ra = 84.36. The results suggest a potential application of nanocomposite based WLEDs in efficient solid-state lighting.

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References

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Published

10-04-2013

How to Cite

[1]
D. N. Chung, L. T. Tuan, T. C. Hao, D. N. Hieu, N. N. Dinh, and P. H. Duong, “Organic - Inorganic Hybrid Luminescent Composite for Solid-state Lighting”, Comm. Phys., vol. 23, no. 1, p. 57, Apr. 2013.

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Papers
Received 20-12-2012
Published 10-04-2013