Synthesis and characterization of Sb2Te3 nanofilms via electrochemical co-deposition method

Erdoğan, İbrahim Y.; Demir, Ümit

doi:10.1016/j.jelechem.2009.06.010

Cited by 48 publications

(33 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[28], and with experimental values of 0.11 eV 29 and 0.16 eV 30,31 . Our computed band gap R3m-E g,Sb2T e3 is larger than another one also calculated with VASP of 0.09 eV 32 , however, somewhat closer to the experimental range from 0.29 to 0.46 eV 33,34 . In all scenarios, Bi, Sb and Te s states lie below -6 eV in the valence band.…”

Section: Resultssupporting

confidence: 76%

Efficient technique for computational design of thermoelectric materials

Núñez-Valdez

Allahyari

Fan

et al. 2018

Computer Physics Communications

View full text Add to dashboard Cite

Efficient thermoelectric materials are highly desirable, and the quest for finding them has intensified as they could be promising alternatives to fossil energy sources. Here we present a general first-principles approach to predict, in multicomponent systems, efficient thermoelectric compounds. The method combines a robust evolutionary algorithm, a Pareto multiobjective optimization, density functional theory and a Boltzmann semi-classical calculation of thermoelectric efficiency. To test the performance and reliability of our overall framework, we use the well-known system Bi2Te3-Sb2Te3.

show abstract

Section: Resultssupporting

confidence: 76%

Efficient technique for computational design of thermoelectric materials

Núñez-Valdez

Allahyari

Fan

et al. 2018

Computer Physics Communications

View full text Add to dashboard Cite

show abstract

“…Electrochemical atomic layer epitaxy Nanofilm Thickness of 19 nm [10] Solvothermal Hexagonal nanoplate Edge length of *200-2,000 nm and the thickness of several tens of nanometers [11] Electrochemical deposition Nanowire Length of the nanowire is up to tens of micrometers [12] Electrochemical co-deposition Nanofilm 4.1-61.2 nm [13] …”

Section: Resultsmentioning

confidence: 99%

Organic-Assisted Nano-Sized Antimony Telluride Prepared by Co-Precipitation Reductive Route

Salavati‐Niasari

Bazarganipour

2012

J Clust Sci

View full text Add to dashboard Cite

Nano-sized antimony telluride is of much interest for improving the thermoelectric figure of merit. In the present work, organic-assisted antimony telluride nanorods were successfully fabricated by a simple hydrothermal method. The products were characterized by means of X-ray diffraction, scanning electron microscope, and transmission electron microscope. The results show that the typical antimony telluride synthesized by co-precipitation reductive route is rodlike in shape with about 35 nm in thickness and 300 nm in edge length.

show abstract

“…3,4,8 Therefore, Sb required for the formation of Sb 2 Te 3 could only be deposited as a result of the free energy gain during the formation of Sb 2 Te 3 and occurs only after Te has been deposited. Therefore, the deposition rate of Sb 2 Te 3 should be limited by Te deposition.…”

Section: Resultsmentioning

confidence: 99%

“…[1][2][3] Among these materials, Sb 2 Te 3 can be used, either individually or alloyed with other elements, in solar cells, thermoelectric devices, and phase-change devices. 4 In the literature, reports on the use of electroplating for preparation of Sb 2 Te 3 thin films and nanostructures are limited. Leimkuhler et al reported an electroplating process at relatively high temperature (100°C) and successfully produced Sb 2 Te 3 crystals on an indium tin oxide (ITO) substrate, from an aqueous acidic solution of SbCl 3 and TeO 2 with HCl.…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition of p-Type Sb x Te y Thermoelectric Films

Lim

Park

Lim

et al. 2011

Journal of Elec Materi

View full text Add to dashboard Cite

Thermoelectric Sb x Te y films were potentiostatically electrodeposited in aqueous nitric acid electrolyte solutions containing different concentrations of TeO 2 . Stoichiometric Sb x Te y films were obtained by applying a voltage of À0.15 V versus saturated calomel electrode (SCE) using a solution consisting of 2.4 mM TeO 2 , 0.8 mM Sb 2 O 3 , 33 mM tartaric acid, and 1 M HNO 3 . The nearly stoichiometric Sb 2 Te 3 films had a rhombohedral structure, R " 3m, with a preferred orientation along the (015) direction. The films had hole concentration of 5.8 9 10 18 /cm 3 and exhibited mobility of 54.8 cm 2 /Vs. A more negative potential resulted in higher Sb content in the deposited Sb x Te y films. Furthermore, it was observed that the hole concentration and mobility decreased with increasingly negative deposition potential, and eventually showed insulating properties, possibly due to increased defect formation. The absolute value of the Seebeck coefficient of the as-deposited Sb 2 Te 3 thin film at room temperature was 118 lV/K.

show abstract

Synthesis and characterization of Sb2Te3 nanofilms via electrochemical co-deposition method

Cited by 48 publications

References 31 publications

Efficient technique for computational design of thermoelectric materials

Efficient technique for computational design of thermoelectric materials

Organic-Assisted Nano-Sized Antimony Telluride Prepared by Co-Precipitation Reductive Route

Electrodeposition of p-Type Sb x Te y Thermoelectric Films

Contact Info

Product

Resources

About