Microstructure and dielectric properties of cellulose acetate-ZnO/ITO composite films based on water hyacinth

International Conference on Physical Instrumentation and Advanced Materials

物理学;材料科学

Diantoro, M.^1,2 ; Mustikasari, A.A.^2 ; Wijayanti, N.^2 ; Yogihati, C.^2 ; Taufiq, A.^2

Universitas Negeri Malang, Faculty of Mathematics and Natural Science, Jl. Semarang 5, Malang, Indonesia^1

Laboratory of Mineral and Advanced Materials, Universitas Negeri Malang, Jl. Semarang 5, Malang, Indonesia^2

关键词: Cellulose acetates;    Electronic application;    Intrinsic property;    ITO/glass substrates;    Light intensity;    Optical applications;    X ray diffractometers;    Zinc oxide (ZnO);   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/853/1/012047/pdf
DOI  :  10.1088/1742-6596/853/1/012047

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The electrical properties of Cellulose Acetate (CA), especially extracted from water hyacinth, is rarely informed. CA is generally more stable compared to its cellulose. It has a good potential for electronic application with specific modifications such as inducing metal oxide. A combination of intrinsic properties of Zinc Oxide (ZnO) and CA is expected as a great potential for electrical and optical applications. CA-ZnO/ITO composite film was investigated in relation with its structure, dielectric constant, and the effect of light intensity on their dielectric constant. CA-ZnO composite films were prepared with different mass of ZnO i.e. 0; 0,02; 0,04; 0,06 and 0,08 grams. CA-ZnO solution was synthesized via the mixing method with PEG:DMF solvents by using a magnetic hotplate stirrer with the rotation rate of 1500 rpm at 80°C. The CA-ZnO solution was then deposited onto ITO/glass substrate by using spin coating technique. The CA-ZnO/ITO films were annealed at 160°C to remove the remaining solvents. The effects of ZnO composition on the structure (crystallinity and morphology) and dielectric constant properties were investigated by using X-Ray Diffractometer, Scanning Electron Microscopy, Fourier Transform Infrared Spectroscopy, and LCR meter. It was shown that cellulose can be isolated from water hyacinth with the yield of 67,72 % by Chesson method and can further be transformed into CA. The X-ray diffraction pattern showed that there are 2 phases formed i.e. CA and ZnO. Furthermore, greater ZnO amount increased the crystallinity of composite films. The CA-ZnO films exhibit porous films with ZnO distributed on the CA surface films. Therefore, ZnO increases the dielectric constant of CA-ZnO composite films.