Near-infrared Fourier transform photoluminescence spectrometer with tunable excitation for the study of single-walled carbon nanotubes

Timothy J. McDonald, Marcus Jones, Chaiwat Engtrakul, Randy J. Ellingson, Gary Rumbles, Michael J. Heben

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

A fast, sensitive, automated Fourier transform (FT) photoluminescence (PL) spectrometer with tunable excitation has been developed for analyzing carbon nanotube suspensions over a wide spectral range. A commercially available spectrometer was modified by the addition of a tunable excitation source, custom collection optics, and computer software to provide control and automated data collection. The apparatus enables excitation from 400 to 1100 nm and detection from 825 to 1700 nm, permitting the analysis of virtually all semiconducting single-walled nanotubes (SWNTs), including those produced by the high pressure carbon monoxide conversion and laser processes. The FT approach provides an excellent combination of high sensitivity and fast measurement. The speed advantage exists because the entire emission spectrum is collected simultaneously, while the sensitivity advantage stems from the high optical throughput. The high sensitivity is demonstrated in the measurement of very dilute SWNT suspensions and the observation of novel spectral features, and the speed is demonstrated by measuring the real-time changes in the SWNT PL during rebundling. This contribution describes the assembly of components, the methods for automating data collection, and the procedures for correcting the wavelength-dependent excitation intensity and the interferometer and detector responses.

Original languageEnglish
Article number053104
JournalReview of Scientific Instruments
Volume77
Issue number5
DOIs
Publication statusPublished - May 2006

Fingerprint

Single-walled carbon nanotubes (SWCN)
Nanotubes
Spectrometers
Fourier transforms
Photoluminescence
carbon nanotubes
spectrometers
Infrared radiation
photoluminescence
nanotubes
excitation
sensitivity
Carbon monoxide
Interferometers
Optics
Carbon nanotubes
stems
Throughput
carbon monoxide
Detectors

ASJC Scopus subject areas

  • Instrumentation
  • Physics and Astronomy (miscellaneous)

Cite this

Near-infrared Fourier transform photoluminescence spectrometer with tunable excitation for the study of single-walled carbon nanotubes. / McDonald, Timothy J.; Jones, Marcus; Engtrakul, Chaiwat; Ellingson, Randy J.; Rumbles, Gary; Heben, Michael J.

In: Review of Scientific Instruments, Vol. 77, No. 5, 053104, 05.2006.

Research output: Contribution to journalArticle

McDonald, Timothy J. ; Jones, Marcus ; Engtrakul, Chaiwat ; Ellingson, Randy J. ; Rumbles, Gary ; Heben, Michael J. / Near-infrared Fourier transform photoluminescence spectrometer with tunable excitation for the study of single-walled carbon nanotubes. In: Review of Scientific Instruments. 2006 ; Vol. 77, No. 5.
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