Hydrazine-based n-type doping process to modulate Dirac point of graphene and its application to complementary inverter

In Yeal Lee, Hyung Youl Park, Jin Hyung Park, Jinyeong Lee, Woo Shik Jung, Hyun Yong Yu, Sang Woo Kim, Gil Ho Kim, Jin Hong Park

    Research output: Contribution to journalArticlepeer-review

    24 Citations (Scopus)

    Abstract

    In this paper, chemical n-type doping process of graphene using hydrazine monohydrate solution (N2H4-H2O) is demonstrated. This method successfully modulates the Dirac point of pristine graphene by adjusting the concentration of hydrazine solution and also provides an effective n-type doping in graphene. First, the hydrazine treated and pristine graphene films are systematically investigated by Raman and FT-IR spectroscopy. Second, with p- and n-channel FETs fabricated on both pristine and hydrazine treated n-type graphene, complementary graphene inverter is demonstrated.

    Original languageEnglish
    Pages (from-to)1586-1590
    Number of pages5
    JournalOrganic Electronics
    Volume14
    Issue number6
    DOIs
    Publication statusPublished - 2013 Jun

    Bibliographical note

    Funding Information:
    This research was supported by (1) Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science, and Technology ( NRF-2011-0007997 ) and (2) World Class University program funded by the Ministry of Education, Science and Technology through the National Research Foundation of Korea ( R32-10204 ).

    Keywords

    • Graphene
    • Hydrazine
    • Inverter
    • N-doping

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • General Chemistry
    • Biomaterials
    • Condensed Matter Physics
    • Electrical and Electronic Engineering
    • Materials Chemistry

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