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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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Department of Science and Technology (ITN), Campus Norrköping, Linköping University, SE 60174 Norrköping, Sweden
* Author to whom correspondence should be addressed.
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 (CC BY 3.0).
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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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