Synthesis of nanocrystalline iron oxide ultrathin films by thermal decomposition of iron nitropruside: Structural and optical properties |
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Authors: | Sanjib Kumar Bhar Swarup Kumar Maji Anup Mondal |
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Affiliation: | a Department of Chemistry, Vivekananda College, Thakurpukur, Kolkata 700063, India b Department of Chemistry, Bengal Engineering and Science University, Shibpur, Howrah 711103, India |
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Abstract: | Ultrathin films of nanocrystalline α-Fe2O3 have been deposited on glass substrates from an inorganic precursor, iron nitropruside. This is a novel route of synthesis for iron oxide thin films on glass substrates, by annealing the precursor thin film in air at 650 °C for 15 min. The films were characterized using TG-DTA analysis, X-ray diffraction, UV-visible, FESEM, AFM and Raman measurements. X-ray diffraction and Raman analyses revealed that the deposited films contain α-phase of Fe2O3 (hematite). The synthetic route described here provides a very simple and cost-effective method to deposit α-Fe2O3 thin films on glass substrates with band gap energy of about 2.75 eV. The deposited films were found to show catalytic effect for the photo-degradation of phenol. |
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Keywords: | A Nanostructures A Thin films B Chemical synthesis C Raman spectroscopy C X-ray diffraction |
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