Aqueous chemical synthesis of tellurium nanowires using a polymeric template for thermoelectric materials

Hongkwan Park, Woohyun Son, Seung Hwan Lee, Soyeon Kim, Jung Joon Lee, Wonseok Cho, Hyang Hee Choi, Jung Hyun Kim

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We report the simple synthesis of tellurium nanowires (TeNWs) by a one-pot scale-up hydrothermal process. A clean wet-chemical method, employing telluric acid (Te(OH)6) as a source of tellurium, ascorbic acid as a weak reducing agent, and a linear polymer as a template, has been developed for the synthesis of TeNWs with a diameter of 30-140 nm and a length of several micrometers at 105°C. A possible explanation for the one-dimensional growth of TeNWs is the linear polymer template. The effects of the concentration of the polymeric template on the nanowire morphology were investigated. Evaluation of the thermoelectric properties indicated a high Seebeck coefficient and a power factor of about 568 μV K-1 and 8.44 μW mK-2, respectively, of the optimized TeNW films, and these values were about 80 times larger than those of the TeNW films formed without a polymeric template. We expect this simple process to be widely applicable for large-scale production of one-dimensional inorganic nanomaterials for energy harvesting and electronic devices.

Original languageEnglish
Pages (from-to)1092-1097
Number of pages6
JournalCrystEngComm
Volume17
Issue number5
DOIs
Publication statusPublished - 2015 Feb 7

Fingerprint

Tellurium
thermoelectric materials
tellurium
Nanowires
nanowires
templates
synthesis
Polymers
Seebeck coefficient
ascorbic acid
Energy harvesting
Ascorbic acid
Reducing Agents
polymers
Reducing agents
Seebeck effect
Nanostructured materials
Ascorbic Acid
micrometers
acids

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Park, Hongkwan ; Son, Woohyun ; Lee, Seung Hwan ; Kim, Soyeon ; Lee, Jung Joon ; Cho, Wonseok ; Choi, Hyang Hee ; Kim, Jung Hyun. / Aqueous chemical synthesis of tellurium nanowires using a polymeric template for thermoelectric materials. In: CrystEngComm. 2015 ; Vol. 17, No. 5. pp. 1092-1097.
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Aqueous chemical synthesis of tellurium nanowires using a polymeric template for thermoelectric materials. / Park, Hongkwan; Son, Woohyun; Lee, Seung Hwan; Kim, Soyeon; Lee, Jung Joon; Cho, Wonseok; Choi, Hyang Hee; Kim, Jung Hyun.

In: CrystEngComm, Vol. 17, No. 5, 07.02.2015, p. 1092-1097.

Research output: Contribution to journalArticle

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