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

Abstract

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.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1210110
Alternate Identifier(s):
OSTI ID: 1420650; OSTI ID: 1459182
Grant/Contract Number:  
SC0001299
Resource Type:
Journal Article: Published Article
Journal Name:
AIP Advances
Additional Journal Information:
Journal Name: AIP Advances Journal Volume: 5 Journal Issue: 8; Journal ID: ISSN 2158-3226
Publisher:
American Institute of Physics
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Rojo, Miguel Muñoz, Manzano, Cristina V., Granados, Daniel, Osorio, M. R., Borca-Tasciuc, Theodorian, and Martín-González, Marisol. High electrical conductivity in out of plane direction of electrodeposited Bi 2 Te 3 films. United States: N. p., 2015. Web. doi:10.1063/1.4928863.
Rojo, Miguel Muñoz, Manzano, Cristina V., Granados, Daniel, Osorio, M. R., Borca-Tasciuc, Theodorian, & Martín-González, Marisol. High electrical conductivity in out of plane direction of electrodeposited Bi 2 Te 3 films. United States. https://doi.org/10.1063/1.4928863
Rojo, Miguel Muñoz, Manzano, Cristina V., Granados, Daniel, Osorio, M. R., Borca-Tasciuc, Theodorian, and Martín-González, Marisol. 2015. "High electrical conductivity in out of plane direction of electrodeposited Bi 2 Te 3 films". United States. https://doi.org/10.1063/1.4928863.
@article{osti_1210110,
title = {High electrical conductivity in out of plane direction of electrodeposited Bi 2 Te 3 films},
author = {Rojo, Miguel Muñoz and Manzano, Cristina V. and Granados, Daniel and Osorio, M. R. and Borca-Tasciuc, Theodorian and Martín-González, Marisol},
abstractNote = {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.},
doi = {10.1063/1.4928863},
url = {https://www.osti.gov/biblio/1210110}, journal = {AIP Advances},
issn = {2158-3226},
number = 8,
volume = 5,
place = {United States},
year = {Sat Aug 01 00:00:00 EDT 2015},
month = {Sat Aug 01 00:00:00 EDT 2015}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at https://doi.org/10.1063/1.4928863

Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

Figures / Tables:

FIG. 1 FIG. 1: Some of the techniques used to measure in plane and out of plane electrical conductivity of films and bulk samples. a) In-plane four point probe b) Van der Pauw c) Modified Transmission Line d) Cox and Strack and e) Cross-plane four probe technique.

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.