Studies on structural, optical, electrical and morphological properties of LiCoO 2 thin films prepared by sol–gel method

被引：6

作者：

Balakrishnan T. ^{[1
]}

Sankarasubramanian N. ^{[1
]}

Kavitha A. ^{[2
]}

Kathalingam A. ^{[3
]}

机构：

[1] Thin Film Research Laboratory, Department of Physics, Thiagarajar College of Engineering, Madurai

[2] Department of Physics, P.S.V College of Engineering and Technology, Krishnagiri

[3] Millimeter-Wave Innovation Technology (MINT) Research Center, Dongguk University, Seoul

来源：

Materials Research Innovations | 2019年 / 23卷 / 04期

关键词：

electrical conductivity; LiCoO [!sub]2[!/sub] thin films; optical properties; sol–gel spin coating;

D O I：

10.1080/14328917.2018.1431190

中图分类号：

学科分类号：

摘要：

In the present investigation, lithium cobalt oxide (LiCoO 2 ) thin films were synthesised by the sol–gel process coupled with a cost-effective spin coating method using citric acid as a chelating agent. The films prepared on mineral glass substrates were annealed at different temperatures of 548–748 K in steps of 50 K. The XRD studies revealed that the LiCoO 2 thin films annealed at a lower temperature exhibit semi-crystalline nature and transform to crystalline structure with an increase in the annealing temperature. The optical band gap energy of the films was found to vary from 2.51 to 3.24 eV for films annealed at temperatures in the range of 548–748 K. The electrical conductivity of the LiCoO 2 thin films varied from 10 −3 to 10 −9 Ω −1 cm −1 due to variation in the annealing temperature. © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.

引用

页码：216 / 221

页数：5

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