Preparation of n-type doped FeS2 thin films

First-principles studies of the electronic properties of native and substitutional anionic defects in bulk iron pyrite

“…Large deviations in FeS 2 stoichiometry (> 1 at. %) have been reported in many studies using elemental analysis, X-ray diffraction and density measurements, 22,24 but these findings have been blamed on measurement error and sample contamination in the review by Hopfner and coworkers, who concluded that there is no definitive proof whether or not pyrite is non-stoichiometric. 61,62 In their view, pyrite is probably a line compound with a sulfur-to-iron ratio of 2.00 (i.e., a phase width of less than one percent).…”

“…However, their transport properties such as carrier concentration, Hall mobility and resistivity exhibit large variations depending on the fabrication methods. 20,21,22,23,24,25,26,27 On the other hand, although p-type doping with P or As has been reported, the source of hole carriers is ambiguous due to the weak dependence of transport properties on the concentration of impurities, rather small Hall voltage, and large uncertainty caused by poor contacts. 21,22,24 A clear understanding of the key factors that govern the transport properties of pyrite is indispensable for solar energy conversion applications.…”

Hydrothermal synthesis of porous FeIn2S4 microspheres and their electrochemical properties

“…Multinary chalcogenides are of great interest for industrial applications such as catalysis, lubrications, refractories, pigments, battery fabrication, and optical and magnetic devices, because of their wide range of semiconducting properties and unique structural characteristics [1][2][3][4]. Current attention of this field is focused on the development of more convenient or ''green'' approaches to prepare them.…”

Crystal Growth and Surface Modification of Pyrite for Use as a Photovoltaic Material

“…Sulfur annealing of iron is a very popular method of synthesizing pyrite. Here elemental pieces of iron are sulfurized but it is also popular to sulfurize iron that has been made into a film by magnetron sputtering [44][45][46][47][48][49][50][51][52][53][54][55] , flash evaporation [56][57][58][59][60][61][62] , and thermal evaporation [63][64][65][66][67][68][69][70] . These films were all polycrystalline.…”