<abstract xmlns="http://www.w3.org/1999/xhtml">LiMn2O4 thin films prepared by cost-effective spin coating method using optimized coating conditions are reported. Spin rate was varied and spin rate dependent properties were studied. Prepared films were characterized for their structural, morphological and optical properties. X-ray diffraction study of LiMn2O4 thin films confirmed the cubic spinel structure with the preferred orientation along (1 1 1) plane. Optical absorption studies showed band gap energy of 3.02 eV for the grown LiMn2O4 films. FT-IR bands assigned to asymmetric stretching modes of MnO6 group were located around 623 cm-1 and 514 cm-1 for the LiMn2O4 thin films. The weak band observed at 437 cm-1 was attributed to the LiO4 tetrahedra. The films showed high conductivity value 0.79 S/cm indicating the generation of effective network of the film for enhanced charge transport. AFM micrographs of the LiMn2O4 films deposited at 3000 rpm and 3500 rpm showed uniform distribution of fine grains throughout the surface without any dark pits, pinholes and cracks. </abstract>

LiMn2O4 thin films prepared by cost-effective spin coating method using optimized coating conditions are reported. Spin rate was varied and spin rate dependent properties were studied. Prepared films were characterized for their structural, morphological and optical properties. X-ray diffraction study of LiMn2O4 thin films confirmed the cubic spinel structure with the preferred orientation along (1 1 1) plane. Optical absorption studies showed band gap energy of 3.02 eV for the grown LiMn2O4 films. FT-IR bands assigned to asymmetric stretching modes of MnO6 group were located around 623 cm-1 and 514 cm-1 for the LiMn2O4 thin films. The weak band observed at 437 cm-1 was attributed to the LiO4 tetrahedra. The films showed high conductivity value 0.79 S/cm indicating the generation of effective network of the film for enhanced charge transport. AFM micrographs of the LiMn2O4 films deposited at 3000 rpm and 3500 rpm showed uniform distribution of fine grains throughout the surface without any dark pits, pinholes and cracks.

Studies on rheological, structural, optical, electrical and surface properties of LiMn2O4 thin films by varied spin rates

Materials Science-Poland

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Studies on rheological, structural, optical, electrical and surface properties of LiMnO thin films by varied spin rates

LiMn2O4 thin films prepared by cost-effective spin coating method using optimized coating conditions are reported. Spin rate was varied and spin rate dependent...

Studies on rheological, structural, optical, electrical and surface properties of LiMn₂O₄ thin films by varied spin rates

Published Online: Oct 31, 2017

Page range: 626 - 631

Received: Mar 02, 2017

Accepted: Sep 02, 2017

DOI: https://doi.org/10.1515/msp-2017-0077

Keywords
LiMn2O4 thin film, sol gel, spin coating, XRD, FT-IR, AFM

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Studies on rheological, structural, optical, electrical and surface properties of LiMn2O4 thin films by varied spin rates

Published Online: Oct 31, 2017

Page range: 626 - 631

Received: Mar 02, 2017

Accepted: Sep 02, 2017

DOI: https://doi.org/10.1515/msp-2017-0077

KeywordsLiMn2O4 thin film, sol gel, spin coating, XRD, FT-IR, AFM

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Studies on rheological, structural, optical, electrical and surface properties of LiMn₂O₄ thin films by varied spin rates

Keywords
LiMn2O4 thin film, sol gel, spin coating, XRD, FT-IR, AFM