Evaluation of power generated by thermoelectric modules comprising a p-type and n-type single walled carbon nanotube composite paper

Mingxing Piao, Min Kyu Joo, Jun Hee Choi, Jong Mok Shin, Young Sun Moon, Gyu-Tae Kim, Urszula Dettlaff-Weglikowska

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Abstract

We report on p-type and n-type thermoelectric (TE) materials made of single-walled carbon nanotube (SWCNT) networks incorporated into the cellulose fiber structure of a common packaging paper. This leads the paper to possess both mechanical flexibility from the cellulose fibers as a supporting matrix and the high electrical conductivity originating from the SWCNTs. Thermoelectric power of up to ±50 μV K<sup>-1</sup> was successfully obtained as well, depending on their electronic type. Further, to demonstrate its thermoelectric voltage (V<inf>TEP</inf>) and generating power, a couple of thermoelectric modules composed of both p-type and n-type composite layers were assembled in series. The produced V<inf>TEP</inf> shows a quasi-linearity with respect to the number of p-n couples and the temperature difference ΔT. Our testing module enables the provision of V<inf>TEP</inf> and power generation as large as ≈16.8 mV and ≈75.5 nW upon inducing a 50 K temperature difference. The feasibility of commercial TE modules consisting of 10, 100 and 1000 p-n SWCNT couples was numerically calculated, taking into account our experimental results.

Original languageEnglish
Pages (from-to)78099-78103
Number of pages5
JournalRSC Advances
Volume5
Issue number95
DOIs
Publication statusPublished - 2015 Sep 2

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ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

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