• Login
    View Item 
    •   JScholarship Home
    • Physics & Astronomy, Dept. of
    • Condensed Matter Physics
    • View Item
    •   JScholarship Home
    • Physics & Astronomy, Dept. of
    • Condensed Matter Physics
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Effects of carrier mobility and morphology in organic semiconductor spin valves

    Thumbnail
    View/Open
    Reich Effects 2009.pdf (244.8Kb)
    Date
    2009-05-01
    Author
    Liu, Yaohua
    Lee, Taegweo
    Katz, Howard E.
    Reich, Daniel H.
    Metadata
    Show full item record
    Abstract
    We studied spin transport in four organic semiconductors (OSCs) with different electronic properties. Magnetoresistance (MR) effects were observed up to room temperature in junctions based on an electron-carrying OSC, tris(8-hyroxyquinoline) aluminum (Alq3) and a hole-carrying OSC, copper phthalocyanine (CuPc). The MR shows similar temperature dependence for these two OSCs. We also investigated junctions based on two high lateral mobility electron-carrying OSCs, 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) and N,N'-bis(4-trifluoromethylbenzyl)-1,4,5,8-naphthalenetetracarboxylic diimide (CF3-NTCDI). However, these junctions showed much weaker spin transport effects. Morphological studies suggest that these high mobility OSC films have much rougher surfaces than either Alq3 or CuPc, therefore the degradation of spin transport may originate from enhanced scattering due to the rougher FM/OSC interfaces. Our study shows that FM/OSC interfaces play an important role for spin transport in organic devices and need further exploration.
    URI
    http://jhir.library.jhu.edu/handle/1774.2/38289
    Collections
    • Condensed Matter Physics

    DSpace software copyright © 2002-2016  DuraSpace
    Policies | Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of JScholarshipCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    DSpace software copyright © 2002-2016  DuraSpace
    Policies | Contact Us | Send Feedback
    Theme by 
    Atmire NV