Miniaturized Thermoelectric Power Sources
نویسنده
چکیده
Advanced thermoelectric microdevices integrated into thermal management packages and low power, electrical power source systems are of interest for a variety of space and terrestrial applications. By making use of macroscopic film technology, microgenerators operating across relatively small temperature differences can be conceptualized for a variety of high heat flux or low heat flux heat source configurations. The miniaturization of state-of-the-art thermoelectric module technology based on Bi2Te3 alloys is limited due to mechanical and manufacturing constraints for thermoelement dimensions (100-200μm thick minimum) and number (100-200 legs maximum). We are developing novel thermoelectric microdevices combining high thermal conductivity substrate materials such as diamond or even silicon, thin film metallization and patterning technology, and electrochemical deposition of 10-50μm thick thermoelectric films. By shrinking the size of the thermoelements and increasing their number to several thousands in a single structure, these devices can generate high voltages even at low power outputs that are more compatible with electronic components. Miniature power systems taking advantage of waste heat sources or organic fuel heat sources and combined with energy storage devices for enhanced performance are particularly attractive for terrestrial applications. Some details about the fabrication of the miniature devices are described.
منابع مشابه
On-chip Hot Spot Remediation with Miniaturized Thermoelectric Coolers
The rapid emergence of nanoelectronics, with the consequent rise in transistor density and switching speed, has led to a steep increase in chip heat flux and growing concern over the emergence of onchip “hot spots” in microprocessors, along with such high flux regions in power electronic chips and LED’s. Miniaturized thermoelectric coolers (μ-TEC’s) are a most promising cooling technique for th...
متن کاملLoad Frequency Control Based on Improved Fuzzy Controller in the Microgrid with Thermoelectric Generator
The Microgrid is a small-scale controlled power system, which can be used in islanded mode or in a grid-connected one to provide power. In the islanded Microgrid, the system frequency will be affected severely by the smallest disturbance which can happen due to light inertia in the system. In the independent Microgrid, several generation sources such as solar, wind, and so on can be considered....
متن کاملMiniaturized Radioisotope Solid State Power Sources
Electrical power requirements for the next generation of deep space missions cover a wide range from the kilowatt to the milliwatt. Several of these missions call for the development of compact, low weight, long life, rugged power sources capable of delivering a few milliwatts up to a couple of watts while operating in harsh environments. Advanced solid state thermoelectric microdevices combine...
متن کاملThermoelectric Material Property Measurement for Flexible Films
........................................................................................................................v LIST OF TABLES ............................................................................................................. ix LIST OF FIGURES .............................................................................................................x LIST OF ABBREVIATION...
متن کاملتأثیر آلاینده خنثای Ca-La بر روی خواص ترابردی و ابررسانایی ترکیب 123-Nd
Polycrystalline samples of Nd1-xCaxBa2-xLaxCu3O7-δ (with 0.0 ≤ x ≤ 0.15) were prepared by the standard solid state method. The transport and superconducting properties have been studied by the resistivity and thermoelectric power measurements as a function of temperature and doping concentration. With increasing doping concentration, the resistivity was increased and thermoelectric power was c...
متن کامل