Electronic properties of semiconducting silicides: fundamentals and recent predictions

Effect of Na Addition on Electric Properties of Ca2Si Sintered Compacts

“…Ca 2 Si is one of the alkaline-earth metal (AEM) silicides, and categorized in the materials group. The electronic structures of Ca 2 Si have been calculated and a direct transition was expected [1][2][3]. The Ca 2 Si layers/powders have been successfully grown by the heat treatment of Si/Mg 2 Si substrates/powders under Ca vapors, and compacts were synthesized by a spark plasma sintering (SPS) technique [4][5][6][7][8][9][10].…”

Improved photoresponsivity of semiconducting BaSi2 epitaxial films grown on a tunnel junction for thin-film solar cells

“…5 A large value of a and expansion of the bandgap in Ba 1Àx Sr x Si 2 were theoretically expected. [8][9][10] BaSi 2 can be grown epitaxially on Si(111) substrates by molecular beam epitaxy (MBE) due to the small lattice mismatch of approximately 1% between the BaSi 2 and Si(111) planes. [11][12][13][14] Recently, we have achieved large photoresponsivities for photon energies greater than the bandgap from BaSi 2 epitaxial layers on Si(111) and polycrystalline BaSi 2 layers on h111i-oriented Si films deposited on SiO 2 using an Al-induced crystallization method.…”

Oxides of third period elements revisited: synthesis, structure and photoluminescence properties of silica, magnesia, and alumina

“…We further propose that the present strategy can be applied not only to oxides but also to borides, carbides, silicides, and nitrides, which are other interesting families of typical element compounds. These non-oxide based materials are especially interesting in terms of thermoelectronic 78) and spintronic applications.…”