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We demonstrate the fabrication and use of our second generation Thermoelectric Nanowire Characterization Platforms (TNCP). The design of this TNCP results from an extensive experimental study on dielectrophoretic (DEP) nanowire manipulation and placement on a DEP test structures. These TNCPs fabricated with optimally designed DEP electrodes have enhanced the nanowire assembly yield up to 90%. As a...
We demonstrate the fabrication and improvements of our next generation Thermoelectric Nanowire Characterization Platform (TNCP) that is utilized to investigate the thermoelectric properties of individual nanowires to obtain the Seebeck coefficient S, electrical conductivity σ and thermal conductivity κ from the same test specimen. Only from these data, the so-called figure of merit ZT can be obtained...
Micro energy harvesting technologies have seen strong growth over the last several years. Many different generator concepts have been developed, converting a wide variety of physical energy sources into useable electrical energy. By integrating sensor modules and a wireless transmitter along with the generators, a high order of flexibility and mobility is obtained with these systems, enabling many...
We demonstrate the fabrication and initial testing of a novel micromachined Thermoelectric Nanowire Characterization Platform (TNCP) which will be applied to measure the thermoelectric properties of a single thermoelectric nanowire. The assembly of the nanowire onto the TNCP is conducted by means of dielectrophoresis (DEP) in combination with a controlled deposition and evaporation of a liquid sample...
Pyroelectric generators (PEGs) present a potential alternative to thermoelectric generators (TEGs), to generate electric power from thermal fields. Pyroelectric generators have a predicted upper limit of 50 % of the Carnot's efficiency, which exceeds that of TEGs. However, PEGs require an oscillating thermal field or thermal vibrations. Such vibrations are rare in technical systems, hindering their...
The floating point unit of the next generation PowerPC is detailed. It has been tested at over 5 GHz. The design supports an extremely aggressive cycle time of 13 FO4 using a technology independent measure. For most dependent instructions, its fused multiply-add dataflow has only 6 effective pipeline stages. This is nearly equivalent to its predecessor, the Power 5, even though its technology independent...
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