Memory effect and electrical hysteresis in CdS nanorods embedded polymer thin films

International Conference on Mechanical, Materials and Renewable Energy

机械制造;材料科学;能源学

Gogoi, K.K.^1 ; Das, R.^1 ; Chowdhury, A.^1

Department of Physics, National Institute of Technology, Silchar, Assam

788010, India^1

关键词: Coated glass substrates;    Electrical hysteresis;    Field emission scanning electron microscopy;    Hysteresis behavior;    Optical energy gap;    Polymer thin films;    Thermal evaporation technique;    UV-visible absorption spectroscopy;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/377/1/012100/pdf
DOI  :  10.1088/1757-899X/377/1/012100

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Herein, we report the memory characteristics and hysteresis behavior of the cadmium sulphide (CdS) embedded poly-methyl methacrylate (PMMA) thin films in a sandwich cell configuration. The devices were fabricated by depositing different concentrations of CdS-PMMA nanocomposites onto indium tin oxide (ITO) coated glass substrates by spin coating technique. Aluminum (Al) was deposited through thermal evaporation technique and was used as top electrode. Structural analysis of the synthesized CdS were performed by using X-ray diffraction (XRD) and field emission scanning electron microscopy (Fe-SEM). UV-Visible absorption spectroscopy and photoluminescence (PL) spectroscopy were performed for optical analysis and optical energy gap was estimated. The current-voltage characteristics of the fabricated devices were studied which displays anti clockwise hysteresis behavior. The area within the hysteresis loop increases with increasing the concentration of CdS within the PMMA thin films.