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HomeMaterials Science ForumMaterials Science Forum Vol. 917Effect of S:Fe Molar Ratios on the Direct...

Effect of S:Fe Molar Ratios on the Direct Formation of Nanocrystalline Pyrite FeS₂ Thin Films by Chemical Spray Pyrolysis under a Low Substrate Temperature (< 300 °C) for Biosensor

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Abstract:

The FeS₂ films were deposited by using the spray pyrolysis method using mixed aqueous solutions of CH₄N₂S and FeCl₃, with different S:Fe molar ratios. The homogeneous FeS₂ nanocrystalline films with good crystallinity were synthesized. The structure, composition, and properties of these films were very sensitive to the S:Fe molar ratios. The direct transition of the pyrite FeS₂ films were about 0.9 - 1.25 eV. High absorption coefficients and suitable band gaps were observed. FeS₂ thin films were synthesized for new biomaterial applications such as glucose.

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Material Science and Engineering Technology VI

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Periodical:

Materials Science Forum (Volume 917)

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69-73

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https://doi.org/10.4028/www.scientific.net/MSF.917.69

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March 2018

Authors:

Bo Ci Cheng, Jen Bin Shi*, Cheng Han Wu, Kuan Ping Chen, Po Feng Wu, Hsuan Wei Lee, Hsien Sheng Lin, Fu Chou Cheng

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Chemical Spray Pyrolysis, Nanocrystalline Materials, Optical Absorption, Thin Films

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© 2018 Trans Tech Publications Ltd. All Rights Reserved

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