Department of Physics Papers
Document Type
Journal Article
Date of this Version
10-27-2008
Abstract
Free electrons or holes can mediate the nonradiative recombination of excitons in carbon nanotubes. Kinematic constraints arising from the quasi-one-dimensional nature of excitons and charge carriers lead to a thermal activation barrier for the process. However, a model calculation suggests that the rate of recombination mediated by a free electron is the same order of magnitude as that of two-exciton recombination. Small amounts of doping may contribute to the short exciton lifetimes and low quantum yields observed in carbon nanotubes.
Date Posted: 13 January 2011
This document has been peer reviewed.
Comments
Suggested Citation:
J.M. Kinder and E.J. Mele. (2008). "Nonradiative recombination of excitons in carbon nanotubes mediated by free charge carriers." Physical Review B. 78, 155429.
© 2008 The American Physical Society
http://dx.doi.org/10.1103/PhysRevB.78.155429.