Interband transitions of chemically deposited pyrite FeS2 films in the fundamental absorption region between 1 and 3.8 eV

Abstract

Pyrite FeS2 films are chemically deposited on quartz plates using the spray pyrolysis technique. Absorption coefficient data in the fundamental absorption region are analyzed and interpreted in terms of interband transitions. The electronic transitions in this region are in satisfactory agreement with the joint density of states estimated by Sato.

Morphology controllable syntheses of micro- and nano-iron pyrite mono- and poly-crystals: a review

“…Many types of precursor materials have been employed in the reported studies, including iron lms, [91][92][93][94][95][96][97][98][99] iron oxide lms, 100-105 iron sulphide lms 106,107 and other typical chemicals. 1,[108][109][110][111][112][113][114][115][116][117] The terminal morphology of iron pyrite is determined by the precursor materials. When the precursor materials are lms, nanotubes or nanowires, so are the terminal pyrite samples.…”

Wet chemical synthesis of iron pyrite and characterization by Mössbauer spectroscopy

“…The use of pyrite in thin film solar-cells became attractive due to its high absorption coefficient (a>6.0 Â 10 5 cm À 1 for hm>1.3 eV) and with the evolution of ''green technology'', it attracted much attention due to its non-toxic constituent elements. Different techniques have been used so far to obtain the pyrite (FeS 2 ), such as, chemical vapor transport (CVT) [1,4], thermal evaporation [5], metal-organic chemical vapor deposition (MOCVD) [6], low temperature chemical technique [7], chemical spray pyrolysis [8], sulfurization of iron oxides [9], flash evaporation of FeS 2 powder [10] and plasma-assisted sulfurization of Fe films [11].…”

Low temperature synthesis of iron pyrite nanorods for photovoltaic applications

“…Among several synthesis methods of FeS 2 nanoparticles reported so far via, hydrothermal synthesis [11,12], sulfurisation of ferrous films [13], solvothermal method [14], electrochemical method [15][16][17], solid state reaction [18], the hydrothermal method is widely appreciated owing to the capability to produce FeS 2 crystals of different sizes and shapes [19]. However, one-dimensional nano architectures like nanorods (NRs), have received enormous attention in recent years due to the attractive properties like broad scattering over a wide range of wavelength, increased surface area, low recombination losses, etc.…”