Pyroelectric temperature sensitization of multi-wall carbon nanotube papers

Ákos Kukovecz, Rita Smajda, Mariann Oze, Henrik Haspel, Zoltán Kónya, Imre Kiricsi

Research output: Contribution to journalLetter

6 Citations (Scopus)

Abstract

This study explores the possibility of converting a self-supporting, randomly aligned, low impedance multi-wall carbon nanotube (MWCNT) paper into a resistive temperature measurement unit working at ambient pressure in air in the 25-70 °C range. Thermosensitization was achieved by decorating the surface of the films with pyroelectric CsNO3 or LiNbO3 crystals. Assuming a linear temperature response, temperature coefficient of resistance values of -0.158% °C-1 and -0.246% °C-1 were calculated for CsNO3 and LiNbO3 doped films, respectively. The corresponding temperature measurement accuracies (2.2 °C and 3.0 °C) are acceptable for some applications but the precision of the temperature measurement needs to be improved.

Original languageEnglish
Pages (from-to)1262-1265
Number of pages4
JournalCarbon
Volume46
Issue number9
DOIs
Publication statusPublished - Aug 1 2008

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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