THE ROLE OF POLYPYRROLE IN ELECTRICAL PROPERTIES OF ZNO-POLYMER COMPOSITE VARISTORS

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ASAADI NASIM; PARHIZKAR MOJTABA; Mohammadi Aref Sajedeh; BIDADI HASSAN

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Journal Paper

Paper Information

Journal: Iranian Journal of Chemistry and Chemical Engineering Year:2017 | Volume:36 | Issue:3 Page(s): 65-72

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Title

THE ROLE OF POLYPYRROLE IN ELECTRICAL PROPERTIES OF ZNO-POLYMER COMPOSITE VARISTORS

Author(s)

ASAADI NASIM | PARHIZKAR MOJTABA | Mohammadi Aref Sajedeh | BIDADI HASSAN | Issue Writer Certificate

Keywords

COMPOSITE MATERIALS

POLYMERS

SCANNING ELECTRON MICROSCOPY (SEM)

X-RAY SCATTERING

Abstract

Composite films on the base of ZnO with different weight percentages of polypyrrole have been prepared using the hot pressing method and their current-voltage characteristics have been studied. Results show that the films have nonlinear varistor behavior and can be used to protect sensitive circuits from 110V up to 350V over voltages. It is found that the higher the content of polypyrrole in the varistor, the lower the breakdown voltage. Samples with higher polypyrrole content have less nonlinearity. The interesting result is that, unlike semiconductor-polyaniline based varistors, varistor hysteresis decreases through increasing polypyrrole content. Results have been analyzed with respect to SEM micrographs and XRD patterns of the samples. Energy gaps of varistors are evaluated using their UV spectra analysis regarding Tauc relation, which show that increasing polypyrrole content in varistors causes their absorption to increase and the corresponding band gap to decrease.

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APA: Copy

ASAADI, NASIM, PARHIZKAR, MOJTABA, Mohammadi Aref, Sajedeh, & BIDADI, HASSAN. (2017). THE ROLE OF POLYPYRROLE IN ELECTRICAL PROPERTIES OF ZNO-POLYMER COMPOSITE VARISTORS. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), 36(3), 65-72. SID. https://sid.ir/paper/694004/en

Vancouver: Copy

ASAADI NASIM, PARHIZKAR MOJTABA, Mohammadi Aref Sajedeh, BIDADI HASSAN. THE ROLE OF POLYPYRROLE IN ELECTRICAL PROPERTIES OF ZNO-POLYMER COMPOSITE VARISTORS. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)[Internet]. 2017;36(3):65-72. Available from: https://sid.ir/paper/694004/en

IEEE: Copy

NASIM ASAADI, MOJTABA PARHIZKAR, Sajedeh Mohammadi Aref, and HASSAN BIDADI, “THE ROLE OF POLYPYRROLE IN ELECTRICAL PROPERTIES OF ZNO-POLYMER COMPOSITE VARISTORS,” IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), vol. 36, no. 3, pp. 65–72, 2017, [Online]. Available: https://sid.ir/paper/694004/en

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