Lancaster EPrints

Negative differential resistance and electroluminescence from InAs light-emitting diodes grown by liquid-phase epitaxy. .

Krier, A. and Huang, X. L. (2005) Negative differential resistance and electroluminescence from InAs light-emitting diodes grown by liquid-phase epitaxy. . Applied Physics Letters, 86 (6). 061113. ISSN 1077-3118

[img]
Preview
PDF (ak2005a.pdf)
Download (404Kb) | Preview

    Abstract

    Negative differential resistance has been observed from InAs homojunction light-emitting diodes grown using liquid-phase epitaxy at 455 °C. The devices were characterized using current–voltage (I–V) and electroluminescence spectroscopy measurements to obtain information about structure defects in InAs. Two distinct negative differential resistance regions were observed in the forward bias I–V characteristic, consistent with carriers tunnelling into defect levels within the InAs band gap. At large forward bias, carrier injection into the defect levels resulted in electroluminescence peaking at 372 meV and then at 392 meV with increasing current. Analysis based on a native lattice complex defect indicates that carriers recombine via the defect levels at temperatures up to 175 K.

    Item Type: Article
    Journal or Publication Title: Applied Physics Letters
    Additional Information: Copyright 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters, 86 (6), 2005 and may be found at http://link.aip.org/link/?APPLAB/86/061113/1
    Subjects: Q Science > QC Physics
    Departments: Faculty of Science and Technology > Physics
    ID Code: 4445
    Deposited By: Dr Susan E. Krier
    Deposited On: 14 Mar 2008 14:43
    Refereed?: Yes
    Published?: Published
    Last Modified: 26 Jul 2012 18:11
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/4445

    Actions (login required)

    View Item