Novel infrared detector

Electrodeposition of Single-Crystal Cubes of Lead Telluride on Polycrystalline Gold Substrate

“…Epitaxially grown single crystalline films are generally fabricated by vacuum vapor deposition onto a single crystalline substrate. To minimize defect formation, substrates with a similar crystal structure and lattice constants as well as thermal expansion coefficient are chosen …”

“…To minimize defect formation, substrates with a similar crystal structure and lattice constants as well as thermal expansion coefficient are chosen. 1 Several methods have been used to achieve epitaxial growth of film, including molecular beam epitaxy, 2 chemical vapor deposition, 3 chemical bath deposition, 4,5 underpotential electrodeposition, 6,7 and overpotential electrodeposition. [8][9][10] Compared to vacuum vapor depositions, electrodeposition is a simple, cost-effective, scaleable, and fast wet process which allows precise control of the composition, crystallographic structure, texture and grain size.…”

Raman spectra of Pb1−xMnxTe alloys

“…Their band gap can vary with composition in the range from almost zero to 0.3 eV [1,2]. Pb 1−x Mn x Te crystals have possibility to be used as an infrared detector (an epilayer grown on Si substrate) [3] or as a substrate for the growth of Hg 1−x Cd x Te [4]. Pb 1−x Mn x Te crystals can be employed as low-dimensional thermoelectric materials in two-dimensional (2D) quantum well system [4], in investigations about the effect of negative magnetoresistance and long-term non-equilibrium processes [1], or as materials for the analysis of the nature of phonon dispersion relation anomalies of IV-VI compounds in the high symmetry phase [5].…”

Local structures in Pb1−xMnxTe systems

“…1 They can be used as infrared optoelectronic devices 2 and thermoelectric materials in two-dimension quantum well systems. 3 The effects of negative magneto resistance, long-term nonequilibrium processes, 1 and the phonon dispersion anomalies in the high symmetry phase have also been observed.…”