Synthesis of Ge-Sn alloys by ion implantation and pulsed laser melting: Towards a group IV direct band gap semiconductor

J. S. Williams, T. T. Tran

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

    Abstract

    The GeSn material system is expected to be a direct bandgap group IV semiconductor at a Sn content of 6.5-12 at.%, depending on the level of residual compressive strain in the alloy films [1]. Such Sn concentrations can only be realized by non-equilibrium preparation techniques since the equilibrium solubility of Sn in Ge is around 0.5 at.% at room temperature [2]. In this presentation, the combination of ion implantation and pulsed laser melting (PLM) is demonstrated to be a promising alternative method to molecular beam epitaxy (MBE) and chemical vapour deposition (CVD) techniques to produce highly Sn concentrated alloys with good crystal quality.

    Original languageEnglish
    Title of host publicationSummer Topicals Meeting Series, SUM 2017
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages1-2
    Number of pages2
    ISBN (Electronic)9781509065707
    DOIs
    Publication statusPublished - 17 Aug 2017
    Event2017 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2017 - San Juan, Puerto Rico
    Duration: 10 Jul 201712 Jul 2017

    Publication series

    NameSummer Topicals Meeting Series, SUM 2017

    Conference

    Conference2017 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2017
    Country/TerritoryPuerto Rico
    CitySan Juan
    Period10/07/1712/07/17

    Fingerprint

    Dive into the research topics of 'Synthesis of Ge-Sn alloys by ion implantation and pulsed laser melting: Towards a group IV direct band gap semiconductor'. Together they form a unique fingerprint.

    Cite this