Improvement of Bismuth Telluride electrodeposited films by the addition of Sodium Lignosulfonate

被引：49

作者：

Caballero-Calero, O. ^{[1
]}

Diaz-Chao, P. ^{[1
]}

Abad, B. ^{[1
]}

Manzano, C. V. ^{[1
]}

Ynsa, M. D. ^{[2
,3
]}

Romero, J. J. ^{[1
]}

Munoz Rojo, M. ^{[1
]}

Martin-Gonzalez, M. S. ^{[1
]}

机构：

[1] CNM CSIC, IMM Inst Microelect Madrid, PTM, E-28760 Tres Cantos, Spain

[2] Univ Autonoma Madrid, Ctr Microanal Mat CMAM, E-28049 Madrid, Spain

[3] Univ Autonoma Madrid, Dept Fis Aplicada, E-28049 Madrid, Spain

来源：

ELECTROCHIMICA ACTA | 2014年 / 123卷

基金：

欧洲研究理事会;

关键词：

Electrodeposition; Bismuth Telluride; Thin films; Nanowires; Thermoelectrics; THERMOELECTRIC PROPERTIES; BI2TE3; FILMS; THIN-FILMS; DEPOSITION; SB2TE3; BI2SE3; RAMAN;

D O I：

10.1016/j.electacta.2013.12.185

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this work we report the improvement on the electrodeposition of Bi2Te3 films with the c-axis parallel to the surface of the substrate. This has been done with the addition of a surfactant agent (sodium lignosulfonate) to the electrochemical bath. A thorough study of the electrodeposition parameters and the material composition, morphology, crystallographic orientation and transport properties was performed. High quality films oriented along the (1 1 0) plane and with a dense morphology were obtained, showing an improved Seebeck coefficient up to 33% bigger than previously reported values. The differences in the morphology due to the presence of the surfactant have been further analyzed studying the shape of films grown from discrete nucleation sites. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：117 / 126

页数：10

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