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Light emission and degradation of single-walled carbon nanotube filament
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10.1063/1.1996852
/content/aip/journal/jap/98/4/10.1063/1.1996852
http://aip.metastore.ingenta.com/content/aip/journal/jap/98/4/10.1063/1.1996852
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) SEM image of the as-prepared SWNT ropes, showing that a SWNT rope is made up of many parallel thinner fibers. [(b)–(d)] SWNT filament bulbs emitting incandescent light, whose light color shifts from orange to white.

Image of FIG. 2.
FIG. 2.

(a) Comparison of the experimentally obtained emission spectra of a SWNT filament induced by an electrical current under different input power conditions with the curves of blackbody radiation. The light intensity of the actual spectra and fitted spectra is multiplied by the scale factor. (b) Plot of transmission factor vs wavelength. (c) Plot of the fitted temperature vs input power .

Image of FIG. 3.
FIG. 3.

(a) Raman spectra of the SWNT filament before (curve a) and after light emission (curves b and c). [(b) and (c)] SEM images of the SWNT filament after the structural transformation during light emission showing that a high density of spherical amorphous carbon particles were formed. (d) TEM images of the SWNT filament after the structural transformation during light emission. The inset shows a double-walled carbon nanotube (DWNT) with an outer diameter of 5.6 nm.

Image of FIG. 4.
FIG. 4.

SEM images of the SWNT filament after the incomplete structural transformation during light emission, showing a mushroomlike structure consisting of the remaining SWNT bundles and newly formed spherical amorphous carbon particles.

Image of FIG. 5.
FIG. 5.

Change of two-point normalized electrical resistance of the SWNT filament with input power. is the resistance of the SWNT filament at room temperature.

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/content/aip/journal/jap/98/4/10.1063/1.1996852
2005-08-18
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Light emission and degradation of single-walled carbon nanotube filament
http://aip.metastore.ingenta.com/content/aip/journal/jap/98/4/10.1063/1.1996852
10.1063/1.1996852
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