We report on the enhanced thermoelectric properties of selenium (Se) doped bismuth telluride (Bi(2)Te(3-x)Se(x)) nanoplatelet (NP) composites synthesized by the polyol method. Variation of the Se composition within NPs is demonstrated by X-ray diffraction and Raman spectroscopy. While the calculated lattice parameters closely follow the Vegard's law, a discontinuity in the shifting of the high ...

Presently, the only commercially available power generating thermoelectric (TE) modules are based on bismuth telluride (Bi2Te3) alloys and are limited to a hot side temperature of 250 °C due to the melting point of the solder interconnects and/or generally poor power generation performance above this point. For the purposes of demonstrating a TE generator or TEG with higher temperature capabili...

The present study extends a recent composite model of in vivo interglandular signaling to assess the impact of age on 1) nonequilibrium exchange among diffusible and protein-bound testosterone (Te); 2) elimination of total and free Te; 3) basal and pulsatile Te secretion (sec); 4) the implicit feedforward function mediating luteinizing hormone (LH) concentration (con) drive of instantaneous Te ...

An ideal thermoelectric material would be a semiconductor with high electrical conductivity and relatively low thermal conductivity: an "electron crystal, phonon glass". Introducing nanoscale heterostructures into the bulk TE matrix is one way of achieving this intuitively anomalous electron/phonon transport behavior. The heterostructured interfaces are expected to play a significant role in ph...

This study describes how the body temperatures (Th) of individual garter snakes varied on a daily basis under field conditions. Temperature-sensitive radio transmitters were surgically implanted into 10 Thamnophis elegans vagrans in eastern Wash? ington. The snakes were released and monitored at 15-min intervals for periods of up to several days from June 1979 to May 1980. Operative environment...

Heat transfer plays an important role in thermoelectric (TE) power generation because the higher the heat-transfer rate from the hot to the cold side of the TE material, the higher is the generation of electric power. However, high heat-transfer rate is difficult to achieve compactly when the hot and/or the cold sources are maintained by a flow of gas such as waste heat from the gas exhaust of ...

Adv. Mater. 2009, 21, 1–4 2009 WILEY-VCH Verlag Gmb Aminiaturized thermoelectric (TE) coolermodule is composed of a large number of TE legs connected electrically in series and thermally in parallel. TE devices operating near room temperature typically create a temperature difference of 30–50 8C, and the TE film thickness for such devices ranges from 10 to 100mm. From manufacturing and reliabil...

Single crystals of the title compound, trilead(II) bis-[tellurate(IV)] dibromide, have been grown under hydro-thermal conditions. The structure is isotypic with that of the chloride analogue, Pb(3)Te(2)O(6)Cl(2), and consists of three Pb, two Te, two Br and four O atoms in the asymmetric unit. Except for two of the O atoms, all atoms are located on mirror planes. The Pb(3)Te(2)O(6)Br(2) structu...

The helium-like argon spectrum is measured for the plasma in the Large Helical Device (LHD). The electron temperature Te derived from the intensity ratio of the resonance line (1s2 S0 – 1s2p P1) to a dielectronic satellite line (1s22p P1/2 – 1s2p2 D3/2) is consistent with the central Te measured with the Thomson scattering method when the electron density ne has a peaked profile. The ion temper...

The application of a temperature difference (∆T) across a solid conductor causes mobile charge carriers to diffuse from hot to cold regions, giving rise to a thermoelectric voltage ∆V=-Se. ∆T. The prefactor Se is called the thermopower or Seebeck coefficient which describes how electrical energy can be generated from the thermal energy. The great majority of today’s thermoelectric (TE) research...