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TitleThermoelectric microconverter for energy harvesting systems
Author(s)Carmo, João Paulo Pereira
Gonçalves, L. M.
Correia, J. H.
KeywordsEnergy harvesting
Renewable energy sources
Thermoelectric energy scavenging systems
Issue date2010
JournalIEEE Transactions on Industrial Electronics
Citation"IEEE Transactions on Industrial Electronics". ISSN 0278-0046. 57:3 (2010) 861-867.
Abstract(s)This paper presents a solution for energy microgeneration through energy harvesting by taking advantage of temperature differences that are converted into electrical energy using the Seebeck effect. A thermoelectric microconverter for energy scavenging systems that can supply low-power electronics was fabricated using thin films of bismuth and antimony tellurides. Thin films of n-type bismuth (Bi2Te3) and p-type antimony (Sb2Te3) tellurides were obtained by thermal coevaporation with thermoelectric figures of merit (ZT) at room temperature of 0.84 and 0.5 and power factors (PF × 10−3 [W · K−1 · m−2]) of 4.87 and 2.81, respectively. The films were patterned by photolithography and wet-etching techniques. The goal for this thermoelectric microconverter is to supply individual electroencephalogram (EEG) modules composed by an electrode, processing electronics, and an antenna, where the power consumption ranges from hundredths of microwatts to a few milliwatts. Moreover, these wireless EEG modules allow patients to maintain their mobility while simultaneously having their electrical brain activity monitored.
Publisher version(c) 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
AccessOpen access
Appears in Collections:CAlg - Artigos em revistas internacionais / Papers in international journals
DEI - Artigos em revistas internacionais

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