Donor and acceptor-like electronic states in a one-dimensional semiconductor

Sungjun Lee, Hajin Kim, Jhinhwan Lee, Young Kuk, Kwang Hwa Chung, Howon Kim, Se Jong Kahng

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    Donor and acceptor-like electronic states were observed near the conduction and valence band, respectively, in a semiconducting single-wall carbon nanotube using scanning tunneling microscopy and spectroscopy. They are observed to be, spatially, at the same location and spread within a few nm. Their physical origin is suggested as locally formed excessive and deficient number of electrons per a closed carbon network.

    Original languageEnglish
    Pages (from-to)4937-4940
    Number of pages4
    JournalSurface Science
    Volume600
    Issue number22
    DOIs
    Publication statusPublished - 2006 Nov 15

    Bibliographical note

    Funding Information:
    We acknowledge the financial support provided by the Ministry of Science and Technology of Korea (National Creative Research Initiatives and M10503000187), by the Ministry of Commerce, Industry and Energy of Korea (Nano-bio Project) and by Korea Research Foundation (KRF-2004-005-C00060).

    Copyright:
    Copyright 2008 Elsevier B.V., All rights reserved.

    Keywords

    • Scanning tunneling microscopy

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Surfaces and Interfaces
    • Surfaces, Coatings and Films
    • Materials Chemistry

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