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
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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.
Willander M, Nur O, Sadaf JR, Qadir MI, Zaman S, Zainelabdin A, Bano N, Hussain I. Luminescence from Zinc Oxide Nanostructures and Polymers and their Hybrid Devices. Materials. 2010; 3(4):2643-2667.
Willander, Magnus; Nur, Omer; Sadaf, Jamil Rana; Qadir, Muhammad Israr; Zaman, Saima; Zainelabdin, Ahmed; Bano, Nargis; Hussain, Ijaz. 2010. "Luminescence from Zinc Oxide Nanostructures and Polymers and their Hybrid Devices." Materials 3, no. 4: 2643-2667.