Electrochemical route to thermoelectric nanowires via organic electrolytes

Klammer, Jana; Bachmann, Julien; Töllner, William; Bourgault, D.; Cagnon, Laurent; Gösele, U.; Nielsch, Kornelius

doi:10.1002/pssb.200945549

Cited by 12 publications

(5 citation statements)

References 30 publications

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“…Nanoporous anodic Al 2 O 3 films, obtained by the simple and inexpensive technique for two-step anodization of high-purity Al substrates (Masuda and Fukuda, 1995;Masuda and Satoh, 1996), have attracted huge interest and have been used as templates for the synthesis of a wide range of nanomaterials (Eftekhari, 2008;Lupu, 2010;Nalwa, 2011), including ordered arrays of magnetic nanowires Vázquez et al, 2005;Prida et al, 2007;Klammer et al, 2010), nanoparticles (Gultepe et al, 2007;Badini et al, 2011), nanotubes (Imai et al, 1999;Daub et al, 2007;Zierold et al, 2011;Proença et al, 2013) arrays of antidots (Masuda and Fukuda, 1995;Vázquez et al, 2008;López-Antón et al, 2009;Béron et al, 2011;Merazzo et al, 2012). Anodization of Al consists of the anodic oxidation of an Al electrode under wellcontrolled electrochemical conditions.…”

Section: Mild Anodizationmentioning

confidence: 99%

Electrochemical methods for template-assisted synthesis of nanostructured materials

Prida

Vega

Garcı́a

et al. 2015

Magnetic Nano- And Microwires

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Section: Mild Anodizationmentioning

confidence: 99%

Electrochemical methods for template-assisted synthesis of nanostructured materials

Prida

Vega

Garcı́a

et al. 2015

Magnetic Nano- And Microwires

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“…By using both type of templates, different thermoelectrics have been prepared by electrodeposition [165,166] from water solution or using organic solvents like dimethyl sulfoxide (DMSO), such as Bi [167], Bi 1−x Sb x [168,169], Bi 2 Te 3 [161,[170][171][172][173][174][175][176][177][178][179], Bi 2 (TeSe) 3 [180], Sb 2 Te 3 , PbTe, (BiSb) 2 Te 3 [181,182], PbSe [183], PbSe 1−x Te x , CoSb 3 , and Bi 2 Te 3 /Sb [184] and Bi 2 Te 3 /(Bi 0.3 Sb. 0.7 ) 2 Te 3 superlattice NWs [185].…”

Section: Bottom-upmentioning

confidence: 99%

Nanowires: A route to efficient thermoelectric devices

Domı́nguez-Adame

Martín‐González

Sánchez

et al. 2019

Physica E: Low-dimensional Systems and Nanostructures

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Miniaturization of electronic devices aims at manufacturing ever smaller products, from mesoscopic to nanoscopic sizes. This trend is challenging because the increased levels of dissipated power demands a better understanding of heat transport in small volumes. A significant amount of the consumed energy in electronics is transformed into heat and dissipated to the environment. Thermoelectric materials offer the possibility to harness dissipated energy and make devices less energy-demanding. Heat-to-electricity conversion requires materials with a strongly suppressed thermal conductivity but still high electronic conduction. Nanowires can meet nicely these two requirements because enhanced phonon scattering at the surface and defects reduces the lattice thermal conductivity while electric conductivity is not deteriorated, leading to an overall remarkable thermoelectric efficiency. Therefore, nanowires are regarded as a promising route to achieving valuable thermoelectric materials at the nanoscale. In this paper, we present an overview of key experimental and theoretical results concerning the thermoelectric properties of nanowires. The focus of this review is put on the physical mechanisms by which the efficiency of nanowires can be improved. Phonon scattering at surfaces and interfaces, enhancement of the power factor by quantum effects and topological protection of electron states to prevent the degradation of electrical conductivity in nanowires are thoroughly discussed.

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“…In 2010, Nielsch's group (Klammer et al, 2010) reported the electrodeposition of antimony telluride nanowires grown in an organic solvent (ethylene glycol) using constant current density and 50 nm pore diameter alumina. The Seebeck coefficient was found to be 21 μV/K.…”

Section: Thermoelectric Propertiesmentioning

confidence: 99%

Electrodeposition of V-VI Nanowires and Their Thermoelectric Properties

Manzano

Martín‐González

2019

Front. Chem.

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Nanostructuration is an intensive field of research due to the appearance of interesting properties at the nanoscale. For instance, in thermoelectricity the most outstanding improvements obtained lately are related to phenomena that appear as a result of nano-engineering different materials. The thermoelectric effect is the direct conversion from temperature gradients into electricity and vice versa . When going to low dimensions, for example in the particular case of thermoelectric nanowires, the transport properties of phonons are modified with respect to those found in bulk leading to a higher thermoelectric figure of merit z . In more detail, this review tries to compile some of the landmarks in the electrodeposition of Bi 2 Te 3 -based nanowires. We will focus on the achievements using different templates, electrolytes and deposition modes. We will also summarize the measurements performed in those nanowires and the main conclusions that can be extracted from the published works. Finally, an update of nanowire-based thermoelectric generators is also included.

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Electrochemical route to thermoelectric nanowires via organic electrolytes

Cited by 12 publications

References 30 publications

Electrochemical methods for template-assisted synthesis of nanostructured materials

Electrochemical methods for template-assisted synthesis of nanostructured materials

Nanowires: A route to efficient thermoelectric devices

Electrodeposition of V-VI Nanowires and Their Thermoelectric Properties

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