Fabrication and comparative optical characterization of n-ZnO nanostructures (nanowalls, nanorods, nanoflowers and nanotubes)/p-GaN white-light-emitting diodes
2011 (English)In: Scripta Materialia, ISSN 1359-6462, E-ISSN 1872-8456, Vol. 64, no 8, 697-700 p.Article in journal (Refereed) Published
White light-emitting diodes (LED) based on ZnO (nanowalls, nanorods, nanoflowers and nanotubes)/p-GaN were fabricated and their electrical, optical and electro-optical characteristics were comparatively characterized. All the LED showed rectifying behavior. The nanowalls and nanorods structures have the highest photoluminescence emission intensity in the visible and UV (at 3.29 eV) regions, respectively. The nanowalls have the highest color rendering index, with a value of 95, and the highest electroluminescence intensity with peaks approximately centered at 420, 450 nm and broad peak covering the visible region.
Place, publisher, year, edition, pages
Elsevier Science B.V., Amsterdam. , 2011. Vol. 64, no 8, 697-700 p.
Zinc oxide, Nanostructure, Aqueous chemical growth, Optical properties, Heterojunctions
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-66849DOI: 10.1016/j.scriptamat.2010.11.046ISI: 000287908300002OAI: oai:DiVA.org:liu-66849DiVA: diva2:405514