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Materials 2010, 3(4), 2643-2667; doi:10.3390/ma3042643
Review

Luminescence from Zinc Oxide Nanostructures and Polymers and their Hybrid Devices

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Received: 4 January 2010 / Revised: 15 March 2010 / Accepted: 31 March 2010 / Published: 12 April 2010
(This article belongs to the Special Issue Luminescent Materials)
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Abstract

Zinc oxide (ZnO) is a strong luminescent material, as are several polymers. These two materials have distinct drawbacks and advantages, and they can be combined to form nanostructures with many important applications, e.g., large-area white lighting. This paper discusses the origin of visible emission centers in ZnO nanorods grown with different approaches. White light emitting diodes (LEDs) were fabricated by combining n-ZnO nanorods and hollow nanotubes with different p-type materials to form heterojunctions. The p-type component of the hybrids includes p-SiC, p-GaN, and polymers. We conclude by analyzing the electroluminescence of the different light emitting diodes we fabricated. The observed optical, electrical, and electro-optical characteristics of these LEDs are discussed with an emphasis on the deep level centers that cause the emission.
Keywords: ZnO nanostructures; deep center luminescence; light emitting diodes; hybrid technology ZnO nanostructures; deep center luminescence; light emitting diodes; hybrid technology
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Willander, M.; Nur, O.; Sadaf, J.R.; Qadir, M.I.; Zaman, S.; Zainelabdin, A.; Bano, N.; Hussain, I. Luminescence from Zinc Oxide Nanostructures and Polymers and their Hybrid Devices. Materials 2010, 3, 2643-2667.

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