Abstract
This chapter examines granular FeS2 synthesized under hydrothermal conditions of 220 °C, with a Fe/S ratio of 1:3. SEM and XRD characterize its morphology, composition, and structure. Measurement of the absorption spectrum within the range of 200–2,000 nm was performed using Cary 500 UV–Vis–NIR spectrophotometer. The band gap was calculated according to the band gap (eV) formula. The results showed that the samples were granular pyrite in the form of cube and octahedron, with a particle size of about 2–5 μm, and include a certain amount of pyrrhotite (Fe1−xS). The absorption peak was about 1,879 nm, with the intrinsic absorption edge (λ 0) and band gap values of 1,885 nm and 0.6578 eV, respectively. Through the relationship between semiconductor conversion efficiency and band gap, we obtained a limiting conversion efficiency which can achieve to about 15 %. We present a brief analysis of the vacancy affection to the band gap of pyrite.
Funds: Supported by National Natural Science Foundation (Grant No.:40872045;41172047); The Opening Project of Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education (12zxgk01).
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References
Ennaoui A, Tributsch H (1986) Energetic characterization of the photoactive FeS2 (pyrite) interface. Sol Energy Mater 14(6):461–474
Ennaoui A, Fiechter S, Pettenkofer C, Alonso-Vante N, Buker K, Bronold M, Hopfner C, Tributsch H (1993) Iron disulfide for solar energy conversion. Sol Energy Mater Sol Cells 29(4):289–370
Wang XH, Huang T, Huang F, Zhang SN, Wang Y, Gao C (2011) Light absorption characteristics of nature pyrite. Spectrosc Spectr Anal 31(09):2508–2511
Dahman H, Khalifa M, Brunel M, Rezig B (1996) Iron pyrite films prepared by sulfur vapor transport. Thin Solid Films 280(1–2):56–60
Aricò AS, Antonucci V, Giordano N (1991) Photoelectrochemical behavior of thermally activated natural pyrite-based photoelectrodes. Mater Chem Phys 28(1):75–87
Pl A, Aricò AS, Giordano N, Antonucci V (1995) Polycrystalline iron sulphide based semiconductors for solar energy conversion. Adv Perform Mater 2(2):145–159
Xu JB, Zheng YF, Li J, Sun YF, Wu R (2004) The structural optical and electrical properties of films prepared by screen print. Acta Phys Sin 53(9):3229–3233
Yan Ji M, Zhang QY (1982) Structure characteristics of electronic energy bands about molecular crystal. Acta Chim Sin 40(9):774–789
Cyrus W, Yue W, Sheraz G, Steven Volkman K, Guo JH, Paul Alivisatos A (2009) Surfactant-assisted hydrothermal synthesis of single phase pyrite FeS2 nanocrystals. Chem Mater 21(13):2568–2570
Kashyout AB, Aricò AS, Monforte G, Crea F, Antonucci V, Giordano N (1995) Electrochemical deposition of ZnFeS thin film semiconductors on tin oxide substrates. Sol Energy Mater Sol Cells 37(1):43–53
Chen JH, Zhong JL, Li YQ, Chen Y, Guo J (2011) Electronic structures and floatability of pyrite, marcasite and pyrrhotite. Chin J Nonferrous Metals 21(7):1719–1727
Huang LY (2011) Preparation and optoelectronic properties of FeS2 and FeS2/TiO2 composite films Zhejiang University. Dissertation, Zhejiang University
Ferrer IJ, Cballero F, Cdelas H, Sánchez CJ (1994) Preparation of n-type doped FeS2 thin films. Solid State Commmun 89(4):349–352
Ferrer IJ, Cballero F, Cdelas H, Sánchez CJ (1995) The effect of Ni impurities on some structural properties of pyrite thin films. Phys Condens Matter 7(17):2115–2121
Li YQ, Chen JH, Chen Y (2010) Electronic structures and flotation behaviour of pyrite containing vacancy defects. Acta Phys Chim Sin 26(5):1435–1441
Schlegel A, Wachter P (1976) Optical properties, phonons and electronic structure of iron pyrite (FeS2). J Phys C Solid State Phys 9(17):3363–3369
Xie XD, Fang JX (1962) Solid physics, 2nd edn. Scientific and Technical Publishers, Shanghai, pp 112–116
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Liu, J. et al. (2015). Light Absorption Characteristics of Multi-morphology FeS2 Granular Synthesized Under Hydrothermal Conditions. In: Dong, F. (eds) Proceedings of the 11th International Congress for Applied Mineralogy (ICAM). Springer Geochemistry/Mineralogy. Springer, Cham. https://doi.org/10.1007/978-3-319-13948-7_22
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DOI: https://doi.org/10.1007/978-3-319-13948-7_22
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