Micro bubble generation using monolayer graphene heating elements

Zhi Wu, Ho-Yin Chan*, Yu Zhou, Wen J. Li

*Corresponding author for this work

    Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

    2 Citations (Scopus)

    Abstract

    Graphene has already been verified to have potential applications in sensor development due to its unique properties, such as large specific surface area, high carrier mobility, conductivity and optical transparency. Here, we discuss our development of a micro bubble generator that could be used to generate and actuate micron-scale bubbles based on monolayer graphene made from chemical vapor deposition (CVD). This micro bubble generator could generate bubbles with diameter of 2 ∼ 65 microns in water. The bubble nucleation power and energy of a graphene heater (7 μm by 30 μm) are 16 mW and 1.6 mJ, respectively. This power is comparable with that of the bubble generator using metal heating elements and carbon nanotubes. Moreover, the resistance-temperature and the current-voltage properties of the fabricated graphene heater are also reported. The experimental results also demonstrated that the monolayer graphene could be used for bubble generation with controllable micro bubble sizes.
    Original languageEnglish
    Title of host publicationProceedings of the 16th International Conference on Nanotechnology
    PublisherIEEE
    Pages728-730
    ISBN (Electronic)978-1-5090-1493-4
    DOIs
    Publication statusPublished - Aug 2016
    Event16th IEEE International Conference on Nanotechnology - IEEE NANO 2016 - Sendai, Japan
    Duration: 22 Aug 201625 Aug 2016

    Conference

    Conference16th IEEE International Conference on Nanotechnology - IEEE NANO 2016
    Country/TerritoryJapan
    CitySendai
    Period22/08/1625/08/16

    Funding

    Y.Z. wishes to acknowledge supports given to him from Scientific Research Fund of Shenzhen Government through grant KQCX2014052114430139 and from State Key Laboratory of Aerodynamics through grant SKLA201402.

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