Carbon nanotube photo- and electroluminescence in longitudinal electric fields

ACS Nano
M FreitagPhaedon Avouris

Abstract

The photoluminescence of a partially suspended, semiconducting carbon nanotube that forms the active channel of a field-effect transistor is quenched and red-shifted upon application of a longitudinal electrical (source-drain) field. The quenching can be explained by a loss of oscillator strength and an increased Auger-like nonradiative decay of the E(11) exciton. The spectral shifts are due to drain-field-induced doping that leads to enhanced dielectric screening. Electroluminescence due to electron impact excitation of E(11) excitons is red-shifted and broadened with respect to the zero-field photoluminescence. A combination of screening and heating of the carbon nanotube can explain both spectral shift and broadening of the electrically induced light emission.

References

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Citations

May 7, 2011·ACS Nano·Zuwei LiuStephen B Cronin
Feb 13, 2016·ACS Applied Materials & Interfaces·Marcel RotherJana Zaumseil
Feb 6, 2015·ACS Applied Materials & Interfaces·Dangmin YuSheng Wang
Aug 23, 2012·Advanced Materials·Sébastien NanotJunichiro Kono
Dec 14, 2011·Optics Express·Martin H P PfeifferRalph Krupke
Dec 18, 2010·Optics Express·Megumi KinoshitaPhaedon Avouris
Jan 26, 2011·Optics Express·Shinichi WatanabeRyo Shimano
Feb 23, 2020·ACS Applied Materials & Interfaces·Bo WangStephen B Cronin
Jul 22, 2020·The Journal of Physical Chemistry. C, Nanomaterials and Interfaces·Christopher P HoroszkoDaniel A Heller
Dec 4, 2020·Journal of the American Chemical Society·Ching-Wei LinR Bruce Weisman

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