Direct synthesis of ZnS nanoribbons, micro-sheets and tetrapods

    Authors

    S. Kar; S. Santra;S. Chaudhuri

    Comments

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    Abbreviated Journal Title

    J. Nanosci. Nanotechnol.

    Keywords

    nano- and micro-structure; scanning and transmission electron; microscopy; photoluminescence; ONE-DIMENSIONAL NANOSTRUCTURES; ZINC-SULFIDE NANOBELTS; PHOTOLUMINESCENCE PROPERTIES; CATALYTIC GROWTH; NANOWIRES; SINGLE; NANOCRYSTALS; LUMINESCENCE; EVAPORATION; ARRAYS; Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials; Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter

    Abstract

    ZnS nano and micro structures such as nanoribbons, large sheets and tetrapod shaped crystals were fabricated by direct thermal evaporation of ZnS powder without using any catalyst. Formation of the one dimensional structures such as nanoribbons and micron order sheets was attributed to the vapor-solid growth mechanism. The formation of octahedron nucleus with cubic crystal structures was proposed as the growth unit of the wurtzite crystal structured tetrapods. Appearance of the periodic stacking faults or twining planes in between alternate cubic and hexagonal crystal structured zones along the growth direction of the ribbons provided secondary growth sites for the octahedron nucleus and subsequent crystal growth resulted in to the formation of the tetrapod arrays. These nano/micro structures of ZnS exhibited a green emission band at room temperature.

    Journal Title

    Journal of Nanoscience and Nanotechnology

    Volume

    8

    Issue/Number

    6

    Publication Date

    1-1-2008

    Document Type

    Article

    Language

    English

    First Page

    3222

    Last Page

    3227

    WOS Identifier

    WOS:000257271600062

    ISSN

    1533-4880

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