| White Electroluminescence Using ZnO Nanotubes/GaN Heterostructure Light-Emitting Diode. | |
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MedLine Citation:
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PMID: 20672120 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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We report the fabrication of heterostructure white light-emitting diode (LED) comprised of n-ZnO nanotubes (NTs) aqueous chemically synthesized on p-GaN substrate. Room temperature electroluminescence (EL) of the LED demonstrates strong broadband white emission spectrum consisting of predominating peak centred at 560 nm and relatively weak violet-blue emission peak at 450 nm under forward bias. The broadband EL emission covering the whole visible spectrum has been attributed to the large surface area and high surface states of ZnO NTs produced during the etching process. In addition, comparison of the EL emission colour quality shows that ZnO nanotubes have much better quality than that of the ZnO nanorods. The colour-rendering index of the white light obtained from the nanotubes was 87, while the nanorods-based LED emit yellowish colour. |
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Authors:
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J R Sadaf; Mq Israr; S Kishwar; O Nur; M Willander |
Publication Detail:
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Type: Journal Article Date: 2010-04-04 |
Journal Detail:
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Title: Nanoscale research letters Volume: 5 ISSN: 1556-276X ISO Abbreviation: Nanoscale Res Lett Publication Date: 2010 |
Date Detail:
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Created Date: 2011-06-29 Completed Date: 2011-07-14 Revised Date: 2011-09-02 |
Medline Journal Info:
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Nlm Unique ID: 101279750 Medline TA: Nanoscale Res Lett Country: United States |
Other Details:
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Languages: eng Pagination: 957-60 Citation Subset: - |
Affiliation:
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Department of Science and Technology (ITN), Linköping University, 60174, Norrköping, Sweden. magwi@itn.liu.se. |
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