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Title: High electrical conductivity in out of plane direction of electrodeposited Bi 2 Te 3 films

Journal Article · · AIP Advances
DOI:https://doi.org/10.1063/1.4928863· OSTI ID:1210110
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The out of plane electrical conductivity of highly anisotropic Bi2Te3 films grown via electro-deposition process was determined using four probe current-voltage measurements performed on 4.6 - 7.2 μm thickness Bi2Te3 mesa structures with 80 - 120 μm diameters sandwiched between metallic film electrodes. A three-dimensional finite element model was used to predict the electric field distribution in the measured structures and take into account the non-uniform distribution of the current in the electrodes in the vicinity of the probes. The finite-element modeling shows that significant errors could arise in the measured film electrical conductivity if simpler one-dimensional models are employed. In conclusion, a high electrical conductivity of (3.2 ± 0.4) · 105S/m is reported along the out of plane direction for Bi2Te3 films highly oriented in the [1 1 0] direction.

Research Organization:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001299
OSTI ID:
1210110
Alternate ID(s):
OSTI ID: 1420650; OSTI ID: 1459182
Journal Information:
AIP Advances, Journal Name: AIP Advances Vol. 5 Journal Issue: 8; ISSN 2158-3226
Publisher:
American Institute of PhysicsCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

References (19)

CRC Handbook of Thermoelectrics book January 2017
Thin film Thermoelectric Characterization Techniques journal January 2013
Review on measurement techniques of transport properties of nanowires journal January 2013
Phosphorus-Doped Carbon Nitride Solid: Enhanced Electrical Conductivity and Photocurrent Generation journal May 2010
Graphene-based conducting inks for direct inkjet printing of flexible conductive patterns and their applications in electric circuits and chemical sensors journal March 2011
Review of Thermoelectric Materials book August 2009
Electrical Resistivity Measurements: a Review journal January 2013
Gated four-probe measurements on pentacene thin-film transistors: Contact resistance as a function of gate voltage and temperature journal December 2004
Four-probe measurements of the in-plane thermoelectric properties of nanofilms journal March 2007
Measurements of anisotropic thermoelectric properties in superlattices journal November 2002
Thin-film thermoelectric devices with high room-temperature figures of merit journal October 2001
Models for contacts to planar devices journal February 1972
Ohmic contacts for GaAs devices journal December 1967
Micro-thermoelectric cooler: interfacial effects on thermal and electrical transport journal May 2004
Reliable contact fabrication on nanostructured Bi2Te3-based thermoelectric materials journal January 2013
Thermoelectric Properties as a Function of Electronic Band Structure and Microstructure of Textured Materials journal February 2010
Thermoelectric properties of Bi2Te3 films by constant and pulsed electrodeposition journal April 2013
Electrical contact resistances of thermoelectric thin films measured by Kelvin probe microscopy journal October 2013
Size-dependent electrical constriction resistance for contacts of arbitrary size: from Sharvin to Holm limits journal December 1999

Figures / Tables (8)

FIG. 1(p. 3)figure FIG. 1
FIG. 2(p. 4)figure FIG. 2
FIG. 3(p. 5)figure FIG. 3
FIG. 4(p. 6)figure FIG. 4
FIG. 5(p. 7)figure FIG. 5
FIG. 6(p. 7)figure FIG. 6
FIG. 7(p. 8)figure FIG. 7
FIG. 8(p. 9)figure FIG. 8

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Related Subjects

36 MATERIALS SCIENCE