In 1823,Thomas Seebeck first discovered the thermoelectric effect.A temperature difference across any electric conductor junction will generate a corresponding voltage difference.Probably the most familiar use of this...In 1823,Thomas Seebeck first discovered the thermoelectric effect.A temperature difference across any electric conductor junction will generate a corresponding voltage difference.Probably the most familiar use of this so called Seebeck effect is thermocouple.When an electric current passing through junction which is composed of two dissimilar conductors results in the absorption or release of the heat,this is the Peltier effect.This effect makes thermoelectric refrigerator or heating devices possible.Moreover a power generator can be also invented from the application of thermoelectric materials.Thermoelectric materials are those which possess high thermoelectric figure of merit.The major problem for thermoelectric materials is poor efficiency.They are now used only in the fields in which cost is not a big problem such as space and some other instruments.Thermoelectric materials are not widely used nowadays.展开更多
CoSb3 nanowire arrays, preferred orientation of [510], were fabricated by electrodeposition of Co2+ and Sb3+ into anodic aluminum oxide (AAO) templates. The morphologies, structure, and composition of the as-synthesiz...CoSb3 nanowire arrays, preferred orientation of [510], were fabricated by electrodeposition of Co2+ and Sb3+ into anodic aluminum oxide (AAO) templates. The morphologies, structure, and composition of the as-synthesized sample have been performed using X-ray diffraction (XRD), transmission electron microscopy (TEM), selected area electron diffraction (SAED) and energy-dispersive X-ray spectroscopy (EDS). Based on the previous investigation on CoSb3 nanowire arrays orientated along [420], the formation mechanism for different preferential orientation nanowire arrays was discussed.展开更多
文摘In 1823,Thomas Seebeck first discovered the thermoelectric effect.A temperature difference across any electric conductor junction will generate a corresponding voltage difference.Probably the most familiar use of this so called Seebeck effect is thermocouple.When an electric current passing through junction which is composed of two dissimilar conductors results in the absorption or release of the heat,this is the Peltier effect.This effect makes thermoelectric refrigerator or heating devices possible.Moreover a power generator can be also invented from the application of thermoelectric materials.Thermoelectric materials are those which possess high thermoelectric figure of merit.The major problem for thermoelectric materials is poor efficiency.They are now used only in the fields in which cost is not a big problem such as space and some other instruments.Thermoelectric materials are not widely used nowadays.
文摘CoSb3 nanowire arrays, preferred orientation of [510], were fabricated by electrodeposition of Co2+ and Sb3+ into anodic aluminum oxide (AAO) templates. The morphologies, structure, and composition of the as-synthesized sample have been performed using X-ray diffraction (XRD), transmission electron microscopy (TEM), selected area electron diffraction (SAED) and energy-dispersive X-ray spectroscopy (EDS). Based on the previous investigation on CoSb3 nanowire arrays orientated along [420], the formation mechanism for different preferential orientation nanowire arrays was discussed.
