Single GaAs/AlGaAs nanowire photoconductive terahertz detectors

Kun Peng*, Patrick Parkinson, Lan Fu, Qiang Gao, Nian Jiang, Ya Nan Guo, Fan Wang, Hannah J. Joyce, Jessica L. Boland, Michael B. Johnston, Hark Hoe Tan, Chennupati Jagadish

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    1 Citation (Scopus)

    Abstract

    Photoconductive terahertz detectors based on single GaAs/AlGaAs core-shell nanowire have been designed and fabricated. The devices were characterised in a terahertz time-domain spectroscopy system, showing excellent sensitivity comparable to the standard bulk ion-implanted InP receiver, with a detection bandwidth of 0.1 ∼ 0.6 THz. Finite-difference time-domain simulations were performed to understand the origin of the narrow bandwidth of current detectors as well as optimize antenna designs to improve detector performance.

    Original languageEnglish
    Title of host publication2014 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2014
    EditorsMariusz Martyniuk, Lorenzo Faraone
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages221-222
    Number of pages2
    ISBN (Electronic)9781479968671
    DOIs
    Publication statusPublished - 10 Feb 2014
    Event2014 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2014 - Perth, Australia
    Duration: 14 Dec 201417 Dec 2014

    Publication series

    Name2014 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2014

    Conference

    Conference2014 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2014
    Country/TerritoryAustralia
    CityPerth
    Period14/12/1417/12/14

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