Bi-Sb layers and wires for magneto- thermoelectric applications
Închide
Articolul precedent
Articolul urmator
110 3
Ultima descărcare din IBN:
2019-09-10 16:14
Căutarea după subiecte
similare conform CZU
537.32+621.315.5+621.38 (1)
Electricitate curentă. Curent electric. Electrocinetică (59)
Electrotehnică (631)
SM ISO690:2012
NIKOLAEVA, Albina; KONOPKO, Leonid; BODYUL, P.; POPOV, Ivan; MOLOSHNIK, Eugen. Bi-Sb layers and wires for magneto- thermoelectric applications. In: Materials Science and Condensed Matter Physics. Ediția a 9-a, 25-28 septembrie 2018, Chișinău. Chișinău, Republica Moldova: Institutul de Fizică Aplicată, 2018, p. 309.
EXPORT metadate:
Google Scholar
Crossref
CERIF
BibTeX
DataCite
Dublin Core
Materials Science and Condensed Matter Physics
Ediția a 9-a, 2018
Conferința "International Conference on Materials Science and Condensed Matter Physics"
Chișinău, Moldova, 25-28 septembrie 2018

Bi-Sb layers and wires for magneto- thermoelectric applications


CZU: 537.32+621.315.5+621.38
Pag. 309-309

Nikolaeva Albina1, Konopko Leonid1, Bodyul P.12, Popov Ivan1, Moloshnik Eugen1
 
1 Ghitu Institute of Electronic Engineering and Nanotechnology,
2 Technical University of Moldova
 
Disponibil în IBN: 14 februarie 2019


Rezumat

Thermoelectric energy conversion efficiency is defined as ZT = S2 σ /χT, where S is the Seebeck coefficient, = is the electrical conductivity, χ is the thermal conductivity, and T is the absolute temperature.  This study is aimed at increasing the thermoelectric figure of merit ZT to maximize the power factor and minimize the thermal conductivity.  Since undoped Bi–12at%Sb alloys are of n-type, the possibility of obtaining p-type Bi–Sb alloys (bulk samples and layers) with a high figure of merit by the addition of acceptor impurities and the application of a transverse magnetic field has been explored.  The mechanical exfoliation method was used to obtain Bi1-xSbx layers and the liquid-phase casting method (Ulitovsky–Tailor) was used to prepare wires [1].  In this paper, we present the results of measurements of transport effects in undoped and doped Bi–12at%Sb–0.001at%Pb alloy bulk samples, single-crystal layers, and glass-insulated wires. The measurements included the electrical resistivity, Seebeck coefficient S, and the Nernst coefficient as a function of crystallographic direction, temperature, and magnetic field direction.  The values and temperature dependence of power factor α2 σ, which were calculated from experimental data in a transverse magnetic field, showed a considerable increase in this parameter in the wires and layers compared with the bulk samples in a magnetic field of 0.3 T [2, 3]. A combination of the Peltier and magneto-Peltier effects in Bi–Sb layers and wires provides a stronger cooling both from room temperature and from 100 K than the cooling in bulk alloys of the same composition.  

Crossref XML Export

<?xml version='1.0' encoding='utf-8'?>
<doi_batch version='4.3.7' xmlns='http://www.crossref.org/schema/4.3.7' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.crossref.org/schema/4.3.7 http://www.crossref.org/schema/deposit/crossref4.3.7.xsd'>
<head>
<doi_batch_id>ibn-72049</doi_batch_id>
<timestamp>1591134076</timestamp>
<depositor>
<depositor_name>Information Society Development Instiute, Republic of Moldova</depositor_name>
<email_address>idsi@asm.md</email_address>
</depositor>
</head>
<body>
<collection>
<collection_metadata>
<full_title>Materials Science and Condensed Matter Physics</full_title>
</collection_metadata>
<collection_issue>
<publication_date media_type='print'>
<year>2018</year>
</publication_date>
</collection_issue>
<collection_article publication_type='full_text'><titles>
<title><p>Bi-Sb layers and wires for magneto- thermoelectric applications</p></title>
</titles>
<contributors>
<person_name sequence='first' contributor_role='author'>
<given_name>Albina</given_name>
<surname>Nikolaeva</surname>
</person_name>
<person_name sequence='additional' contributor_role='author'>
<given_name>Leonid</given_name>
<surname>Konopko</surname>
</person_name>
<person_name sequence='additional' contributor_role='author'>
<given_name>Pavel</given_name>
<surname>Bodiul</surname>
</person_name>
<person_name sequence='additional' contributor_role='author'>
<given_name>Ivan</given_name>
<surname>Popov</surname>
</person_name>
<person_name sequence='additional' contributor_role='author'>
<given_name>Eugeniu</given_name>
<surname>Moloşnic</surname>
</person_name>
</contributors>
<publication_date media_type='print'>
<year>2018</year>
</publication_date>
<pages>
<first_page>309</first_page>
<last_page>309</last_page>
</pages>
</collection_article>
</collection>
</body>
</doi_batch>