Shape Control Iron Pyrite Synthesized by Hot Injection Method: Counter Electrode for Efficient Dye-Sensitized Solar Cells

Imaging the Kirkendall effect in pyrite (FeS2) thin films: Cross-sectional microstructure and chemical features

“…Thus, different temperatures, reaction times, initial precursors, etc., will determine some of the characteristics (stoichiometric relationships, purity of the pretended phase, type and density of particular defects or crystallization features) of the synthesized material. According to the existing literature, pyrite thin films show an appreciable variety of properties depending on the method used to grow them: sulfuration of iron thin films [3][4][5]14,15,25], chemical vapor deposition [26][27][28][29], sputtering [30,31], flash evaporation [11], spray pyrolysis [32], molecular ink-based techniques [33], hydrothermal processes [2], or electrodeposition [34]. In spite of the easiness to synthesize pyrite thin films, the details of their formation mechanism are not yet fully explained.…”

Na-Mediated Stoichiometry Control of FeS2 Thin Films: Suppression of Nanoscale S-Deficiency and Improvement of Photoresponse

“…The other trend is the development of new deposition methods in fabrication of pyrite absorbers at low cost in a facile manner together with resolution of the issues identified above. Various thin film fabrication routes, including chemical vapor deposition, 9,16 sputter deposition, 17 spray pyrolysis, 18 molecular inkbased, 19,20 and nanocrystal ink-based 21,22 processes, have been reported for energy-harvesting device application such as solar cells and photodiodes. 23 With respect to the secondary phase and nonstoichiometry related issues, marcasite (the polymorph of iron pyrite) and Sdeficient iron sulfides have long been a subject of investigation.…”

Iron Pyrite in Photovoltaics: A Review on Recent Trends and Challenges

“…ODA, TOA, OLA, perchloric acid, hydrated iron­(II) chloride, and sulfur were used as reagents along with sodium dodecyl sulfate (SDS) as a surfactant. It can be observed from Figure a that the XRD pattern of the as-prepared samples of pyrite was like face-centered cubic crystals and showed high phase purity, which was confirmed with Raman spectroscopy . Bastola et al conducted several studies recently on the doping of nickel and cobalt onto pyrite prepared through HIM and analyzed the performance in cadmium/telluride (CdTe) photovoltaic devices.…”

“…(a) X-ray diffraction patterns (left) and Raman spectra of spherical and cubic FeS 2 nanocrystals (right). Reproduced with permission from ref . Copyright [2019] The Korean Institute of Metals and Materials.…”