Non-isothermal kinetic study on the decomposition of Zn acetate-based Sol-gel precursor |
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| Authors: | V. Muşat P. Budrugeac R. C. C. Monteiro E. Fortunato E. Segal |
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| Affiliation: | (1) Department of Metals and Materials Science, ‘Dunărea de Jos’ University of Galati, 111 Domneasca, 800201 Galati, Romania;(2) INCDIE-ICPE-CA-National Institute for Research and Development in Electrical Engineering, 313 Splaiul Unirii, 030138 Bucharest, Romania;(3) Department of Materials Science, CENIMAT, Faculty of Sciences and Technology, New University of Lisbon, Quinta da Torre, 2829-516 Caparica, Portugal;(4) Department of Physical Chemistry, University of Bucharest, 4-12 Bd. Elisabeta, 7034 Bucharest, Romania |
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| Abstract: | The isoconversional methods (Friedman (FR), Flynn-Wall-Ozawa (FWO) and Kissinger-Akahira-Sunose (KAS)) were applied for evaluating the dependencies of the activation energy (E) on the mass loss (Δm) corresponding to the non-isothermal decomposition of two Zn acetate-based gel precursors for ZnO thin films whose preparation differs by the drying temperature of the liquid sol-precursor (125°C for sample A, and 150°C for sample B). Although both investigated samples exhibit similar decomposition steps, strong differences between E vs. Δm curves as well as among the characteristic parameters of the decomposition steps, directly evaluated from TG, DTG and DTA curves, were put in evidence. |
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| Keywords: | isoconversional kinetic methods sol-gel TG-DTG-DTA thermal decomposition Zn acetate-based precursor |
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