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Controlled defects and trap-assisted mitigation in Li-intercalated zinc oxide ceramics

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Abstract

The present work reports the Li intercalation of high temperature synthesized zinc oxide ceramics for defect controlled trap states based on semiconductor nanocrystals. The intercalation of Li+ ions resulted in control of the intrinsic donor defects due to the interstitial phenomenon. Moreover, Li+ intercalation also downshifts the imaginary permittivity, which contributes to the reduction of overall dielectric loss of the semiconductor nanocrystals. In comparison to the pristine zinc oxide, the ac conductivity in the Li incorporated zinc oxide get highly dependent on the field frequency. The improved dielectric loosening, trap-assisted mitigation, and superior charge extraction properties in Li-intercalated ZnO were investigated thoroughly with the dielectric and optical spectroscopy techniques.

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Funding

A. Franco Jr acknowledges 310440/2018-1 CNPq grant. P. Banerjee thanks SERB, India, for TARE grant no TAR/2021/000032. Bhargavi Koneru thanks GITAM University for Dr M. V. V. S Murthi research fellowship.

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Authors and Affiliations

  1. Multiferroic and Magnetic Material Research Laboratory, Gandhi Institute of Technology and Management (GITAM) University, Bengaluru, Karnataka, India

    Bhargavi Koneru & P. Banerjee

  2. Instituto de Fisica, Universidade Federal de Goias, Goiania, Brazil

    A. Franco Jr.

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  1. Bhargavi Koneru
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  2. P. Banerjee
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  3. A. Franco Jr.
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Correspondence to P. Banerjee.

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Koneru, B., Banerjee, P. & Franco Jr., A. Controlled defects and trap-assisted mitigation in Li-intercalated zinc oxide ceramics. emergent mater. 6, 315–320 (2023). https://doi.org/10.1007/s42247-023-00450-x

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