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Dopant induced polarity inversion in polar ZnO nanorods

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Abstract

Highly oriented and polarity controlled ZnO nanorod thin films are deposited by chemical bath deposition where the preferred polarity depends on the anionic nature of the Zn salt. Significant differences are noticed in magnesium (Mg) doping concentration on Zn- and O-polar ZnO nanorods. Higher doping concentration is achieved in Zn polar nanorods, which is characterized with different spectroscopic techniques. A noteworthy contribution in morphological changes is noted upon by Mg doping on both Zn- and O-polar ZnO nanorods. Polarity inversion of the individual nanorods are found at certain doping condition, characterized by chemical etching rate measurements and Schottky Barrier Height determination of the individual nanorod.

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Acknowledgments

Authors thank financial support from National Centre for Photovoltaic Research and Education (NCPRE) Funded by Ministry of New and Renewable Energy (MNRE), Govt. of India.

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Authors and Affiliations

  1. Department of Energy Science and Engineering, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India

    Neelam Rathore & Shaibal K. Sarkar

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  1. Neelam Rathore
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  2. Shaibal K. Sarkar
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Correspondence to Shaibal K. Sarkar.

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Rathore, N., Sarkar, S.K. Dopant induced polarity inversion in polar ZnO nanorods. J Mater Sci: Mater Electron 27, 12312–12317 (2016). https://doi.org/10.1007/s10854-016-5088-y

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  • DOI: https://doi.org/10.1007/s10854-016-5088-y

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