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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 22 — Aug. 1, 2008
  • pp: 3999–4003

Infrared responsivity of a pyroelectric detector with a single-wall carbon nanotube coating

E. Theocharous, C. Engtrakul, A. C. Dillon, and J. Lehman  »View Author Affiliations

Applied Optics, Vol. 47, Issue 22, pp. 3999-4003 (2008)

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The performance of a 10 mm diameter pyroelectric detector coated with a single-wall carbon nanotube (SWCNT) was evaluated in the 0.8 to 20 μm wavelength range. The relative spectral responsivity of this detector exhibits significant fluctuations over the wavelength range examined. This is consistent with independent absorbance measurements, which show that SWCNTs exhibit selective absorption bands in the visible and near-infrared. The performance of the detector in terms of noise equivalent power and detectivity in wavelength regions of high coating absorptivity was comparable with gold-black-coated pyroelectric detectors based on 50 μm thick Li Ta O 3 crystals. The response of this detector was shown to be nonlinear for DC equivalent photocurrents > 10 9 A , and its spatial uniformity of response was comparable with other pyroelectric detectors utilizing gold-black coatings. The nonuniform spectral responsivity exhibited by the SWCNT-coated detector is expected to severely restrict the use of SWCNTs as black coatings for thermal detectors. However, the deposition of SWCNT coatings on a pyroelectric crystal followed by the study of the prominence of the spectral features in the relative spectral responsivity of the resultant pyroelectric detectors is shown to provide an effective method for quantifying the impurity content in SWCNT samples.

OCIS Codes
(040.3060) Detectors : Infrared
(160.4236) Materials : Nanomaterials

ToC Category:

Original Manuscript: June 6, 2008
Manuscript Accepted: June 19, 2008
Published: July 22, 2008

E. Theocharous, C. Engtrakul, A. C. Dillon, and J. Lehman, "Infrared responsivity of a pyroelectric detector with a single-wall carbon nanotube coating," Appl. Opt. 47, 3999-4003 (2008)

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  1. W. R. Blevin and J. Geist, “Influence of black coatings on pyroelectric detectors,” Appl. Opt. 13, 1171-1178 (1974). [CrossRef] [PubMed]
  2. D. J. Advena, V. T. Bly, and J. T. Cox, “Deposition and characterisation of far-infrared absorbing gold black films,” Appl. Opt. 32, 1136-1144 (1993). [CrossRef] [PubMed]
  3. J. Lehman, E. Theocharous, G. Eppeldauer, and C. Pannel, “Gold-black coatings for freestanding pyroelectric detectors,” Meas. Sci. Technol. 14, 916-922 (2003). [CrossRef]
  4. N. Nelms and J. Dowson, “Goldblack coating for thermal infrared detectors,” Sens. Actuators A 120, 403-407(2005). [CrossRef]
  5. J. H. Lehman, C. Engtrakul, T. Gennet, and A. C. Dillon, “Single-wall carbon nanotube coating on a pyroelectric detector,” Appl. Opt. 44, 483-488 (2005). [CrossRef] [PubMed]
  6. J. H. Lehman, R. Deshpande, P. Rice, and A. C. Dillon, “Carbon multi-walled nanotubes grown by HWCVD on a pyroelectric detector,” Infrared Phys. Technol. 47, 246-250 (2006). [CrossRef]
  7. E. Theocharous, R. Deshpande, A. C. Dillon, and J. Lehman, “The evaluation of a pyroelectric detector with a carbon multi-walled nanotube black coating in the infrared,” Appl. Opt. 45, 1093-1097 (2006). [CrossRef] [PubMed]
  8. T. Guo, P. Nikolaev, A. Thess, D. T. Colbert, and R. E. Smalley, “Catalytic growth of single-walled nanotubes by laser vaporization,” Chem. Phys. Lett. 243, 49-54 (1995). [CrossRef]
  9. A. C. Dillon, T. Gennett, K. M. Jones, J. L. Alleman, P. A. Parilla, and M. J. Heben, “A simple and complete purification of single-walled carbon nanotube materials,” Adv. Mater. 11, 1354-1358 (1999). [CrossRef]
  10. E. Theocharous, F. J. J. Clarke, L. J. Rodgers, and N. P. Fox, “Latest techniques at NPL for the characterisation of infrared detectors and materials,” Proc. SPIE 5209, 228-239(2003). [CrossRef]
  11. E. Theocharous, J. Ishii, and N. P. Fox, “A comparison of the performance of a photovoltaic HgCdTe detector with that of a large area single pixel QWIP for infrared radiometric applications,” Infrared Phys. Technol. 46, 309-322 (2005). [CrossRef]
  12. E. Theocharous, J. Ishii, and N. P. Fox, “Absolute linearity measurements on HgCdTe detectors in the infrared,” Appl. Opt. 43, 4182-4188 (2004). [CrossRef] [PubMed]
  13. L. P. Boivin, “Automated absolute and relative spectral linearity measurements on photovoltaic detectors,” Metrologia 30, 355-360 (1993). [CrossRef]
  14. E. Theocharous, T. R. Prior, P. R. Haycocks, and N. P. Fox, “High-accuracy, infrared, spectral responsivity scale,” Metrologia 35, 543-548 (1998). [CrossRef]
  15. E. Theocharous, “The establishment of the NPL infrared relative spectral response scale using cavity pyroelectric detectors,” Metrologia 43, S115-S119 (2006). [CrossRef]
  16. E. Theocharous, “Absolute linearity measurements on LiTaO3 pyroelectric detectors,” Appl. Opt. 47, 3397-3405 (2008). [CrossRef] [PubMed]
  17. W. Becker, R. Fettig, A. Gaymann, and W. Ruppel, “Black gold deposits as absorbers for far infrared radiation,” Phys. Status Solidi B 194, 241-255 (1996). [CrossRef]
  18. B. J. Landi, H. J. Ruf, C. M. Evans, C. D. Cress, and R. P. Raffaelle, “Purity assessment of single-wall carbon nanotubes using optical absorption spectroscopy,” J. Phys. Chem. B 109, 9952-9965 (2005). [CrossRef]
  19. T. M. Barnes, J. van de Lagemaat, D. Levi, G. Rumbles, T. J. Coutts, C. L. Weeks, D. A. Britz, I. Levitsky, J. Peltola, and P. Glatkowski, “Optical characterization of highly conductive single-wall carbon-nanotube transparent electrodes,” Phys. Rev. B 75, 235410 (2007). [CrossRef]

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