Antimonide

About: Antimonide is a research topic. Over the lifetime, 972 publications have been published within this topic receiving 10981 citations. The topic is also known as: antimonides.

Ti5Si1.3Sb1.7 The first titanium silicide antimonide, forming a crystal structure not found in either binary system

Abstract: Ti5SixSb3–x can be prepared by melting mixtures of Ti, Si, and TiSb2. The ternary phase with x = 1.32(5) crystallizes in the W5Si3 type (space group I4/mcm, Z = 8, for x = 1.32(5): a = 1034.6(2), c...

Electron Mobility in Aluminum Antimonide

Abstract: The temperature dependence of the electron mobility in tellurium‐doped aluminum antimonide is calculated assuming combined polar optical, acoustical mode, and ionized impurity scattering. The separate mobilities for each mechanism are calculated using effective mass components (which have been given by the authors in a previous publication) in a many‐valley model having [100] symmetry. It is found that the dominant scattering mechanism at room temperature is polar optical mode. However, it appears likely that acoustical mode scattering is non‐negligible. The calculated temperature dependence of the mobility is found to be in reasonable agreement with the measured mobility behavior of a sample with known compensation. The calculations give a room‐temperature lattice mobility of 250 cm2/V·sec. A lower observed Hall mobility than that calculated for temperatures above room temperature in the same sample is attributed to the onset of intra‐ and intervalley scattering by nonpolar optical modes, and possible nonparabolicity of the band minima.

Growth and performance of superlattice-based long wavelength complementary barrier infrared detectors (CBIRDs)

Abstract: We have demonstrated the use of bulk antimonide based materials and type-II antimonide based superlattices in the development large area long wavelength infrared (LWIR) focal plane arrays (FPAs) Barrier infrared photodetectors (BIRDS) and superlattice-based infrared photodetectors are expected to outperform traditional III-V MWIR and LWIR imaging technologies and are expected to offer significant advantages over II-VI material based FPAs Our group has developed a novel complementary barrier infrared detector (CBIRD) which utilizes properties unique to the antimonide material system to incorporate unipolar barriers on either side of a superlattice absorber region We have used molecular beam epitaxy (MBE) technology to grow InAs/GaSb CBIRD structures on large area 100mm GaSb substrates with excellent results Furthermore, we have fabricated initial 1024x1024 pixels superlattice imaging FPAs based on the CBIRD concept