STM investigation of nano-structures fabricated on passivated Si surfaces

Jeong Sook Ha, Kang Ho Park, Kyoung Wan Park, Wan Soo Yun

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    We have successfully fabricated nano-structures on passivated Si surfaces and investigated those structures by using scanning tunneling microscope (STM) and atomic force microscope (AFM). Ag nano-dots were formed on Sb-passivated Si(100) surface via self-organization mechanism and the single-electron charging effect was observed by STM at room temperature. Thermal nitridation and subsequent oxygen-induced etching of Si surfaces resulted in the formation of silicon nano-dots using silicon nitride islands as masks. Au/Ti nano-wire was also fabricated via a selective ion etching of Au/Ti thin film using carbon nanotube (CNT) mask. These results suggest new fabrication method of nano-structures using surface chemical reactions without artificial lithography techniques.

    Original languageEnglish
    Pages (from-to)169-173
    Number of pages5
    JournalKorean Journal of Chemical Engineering
    Volume20
    Issue number1
    DOIs
    Publication statusPublished - 2003 Jan

    Bibliographical note

    Funding Information:
    This work has been supported by the Ministry of Information and Communications, Korea.

    Keywords

    • Ag Nano dot
    • Atomic Force Microscope
    • Au Nano-wire
    • Carbon Nanotube
    • Nano-fabrication
    • Passivated Si Surfaces
    • Scanning Tunneling Microscope
    • Si Nano-dot

    ASJC Scopus subject areas

    • General Chemistry
    • General Chemical Engineering

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