• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguideTheses and Dissertations LibguideSubmit an Item

    Statistics

    Display statistics

    Self-planarized quantum-disks nanowires ultraviolet-B emitter utilizing pendeo-epitaxy

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    c7nr00006e.pdf
    Size:
    1.878Mb
    Format:
    PDF
    Description:
    Accepted Manuscript
    Download
    Type
    Article
    Authors
    Janjua, Bilal cc
    Sun, Haiding cc
    Zhao, Chao cc
    Anjum, Dalaver H. cc
    Wu, Feng
    Alhamoud, Abdullah
    Li, Xiaohang cc
    Albadri, Abdulrahman M
    Alyamani, Ahmed Y
    El-Desouki , Munir M
    Ng, Tien Khee cc
    Ooi, Boon S. cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Electron Microscopy
    Imaging and Characterization Core Lab
    Photonics Laboratory
    KAUST Grant Number
    BAS/1/1614-01-01
    Date
    2017
    Permanent link to this record
    http://hdl.handle.net/10754/622985
    
    Metadata
    Show full item record
    Abstract
    The growth of self-assembled, vertically oriented and uniform nanowires (NWs) has remained a challenge for efficient light-emitting devices. Here, we demonstrate dislocation-free AlGaN NWs with spontaneous coalescence, which are grown by plasma-assisted molecular beam epitaxy on an n-type doped silicon (100) substrate. A high density of NWs (filling factor > 95%) was achieved under optimized growth conditions, enabling device fabrication without planarization using ultraviolet (UV)-absorbing polymer materials. UV-B (280-320 nm) light-emitting diodes (LEDs), which emit at ~303 nm with a narrow full width at half maximum (FWHM) (~20 nm) of the emission spectrum, are demonstrated using a large active region (“active region/NW length-ratio” ~ 50%) embedded with 15 stacks of AlxGa1-xN/AlyGa1-yN quantum-disks (Qdisks). To improve the carrier injection, a graded layer is introduced at the AlGaN/GaN interfaces on both p- and n-type regions. This work demonstrates a viable approach to easily fabricate ultra-thin, efficient UV optoelectronic devices on low-cost and scalable silicon substrates.
    Citation
    Janjua B, Sun H, Zhao C, Anjum DH, Wu F, et al. (2017) Self-planarized quantum-disks nanowires ultraviolet-B emitter utilizing pendeo-epitaxy. Nanoscale. Available: http://dx.doi.org/10.1039/c7nr00006e.
    Sponsors
    We acknowledge the financial support from King Abdulaziz City for Science and Technology (KACST), Grant No. KACST TIC R2-FP-008. This work was partially supported by the King Abdullah University of Science and Technology (KAUST) baseline funding, BAS/1/1614-01-01.
    Publisher
    Royal Society of Chemistry (RSC)
    Journal
    Nanoscale
    DOI
    10.1039/c7nr00006e
    Additional Links
    http://pubs.rsc.org/en/Content/ArticleLanding/2017/NR/C7NR00006E#!divAbstract
    ae974a485f413a2113503eed53cd6c53
    10.1039/c7nr00006e
    Scopus Count
    Collections
    Articles; Imaging and Characterization Core Lab; Electrical and Computer Engineering Program; Photonics Laboratory; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

    entitlement

     
    DSpace software copyright © 2002-2022  DuraSpace
    Quick Guide | Contact Us | KAUST University Library
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.