Recent Progress on Pyrite FeS2 Nanomaterials for Energy and Environment Applications: Synthesis, Properties and Future Prospects

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

“…The most promising of these sources is the solar one, which may be directly converted into electric energy by solar cells made from photovoltaic materials in different configurations [1] . In this context, pyrite (FeS 2 ) has recently recovered the researchers' attention [1][2][3][4][5] due to the abundance of its elements, its environmental goodness and the possibility to synthesize pyrite thin films, single crystals and nanostructures [6][7][8][9]. In addition, pyrite is considered a very promising material for solar energy conversion processes due to its very convenient bandgap (0.9-1.0 eV [10,11]) and high optical absorption coefficient (α~10 5 cm −1 ) in a significant part of the solar radiation spectrum, what would allow to design very thin photovoltaic devices.…”

Influence of electron accelerator irradiation on epoxy nanocomposites materials for spacecraft structure

“…In conclusion, in terms of measuring the resistance, the addition of MWCNTs nanoparticles to the epoxy resins reduces the resistance, the more uniform dispersion is the more closely resistive values for the entire sample. Figure (7) shows the electrical dispersion evaluation results of electron beam irradiated samples after exposure to dose of 100 kGy. The electrical resistance values of all irradiated samples are increased by different magnitude after e-beam irradiation.…”

“…Epoxy has good mechanical properties, low molecular weight, low cost, ease of manufacturing, low shrinkage (1-5 %) during cure, good physical bonding to other substances, and good chemical resistance [4--6]. The epoxy resin used as a surrounding substance in architecturally strong composite materials in combination with carbon fibers, glass fibers, aramid fiber (Kevlar fibers) etc., are used as fibrous reinforcements for applications such as adhesives [7] in nuclear reactors, high-energy accelerators, automotive aerospace, and military [8,9]. The most widespread form of polymerization from academic and commercial perspectives is the free-radical polymerization technique which is broadly applicable to a wide range of monomers [10].…”

Fabrication of Iron Pyrite Thin Films and Photovoltaic Devices by Sulfurization in Electrodeposition Method

“…The development of photovoltaic technology requires cheap, stable, non-toxic, and earth-abundant materials. Iron pyrite (FeS 2 ) is a photovoltaic material that has attracted researchers in recent years [1,2]. It possesses high stability and nontoxicity with an indirect optical band gap of 0.95 eV.…”

“…Researchers have tried various methods to synthesize iron pyrite films, such as hydrothermal, hot injection, spin coating, chemical vapor deposition, physical vapor deposition, spray pyrolysis, and electrochemical deposition (ECD) [1,3,14,16,17]. Among them, ECD is the simplest and most cost-efficient method, and can produce a large-area film without a vacuum [17][18][19].…”