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Published November 11, 2009 | public
Journal Article

Heating and Cooling Dynamics of Carbon Nanotubes Observed by Temperature-Jump Spectroscopy and Electron Microscopy


Microscopy imaging indicates that in situ carbon nanotubes (CNTs) irradiation with relatively low dosages of infrared radiation results in significant heating of the tubes to temperatures above 1300 K. Ultrafast temperature-jump experiments reveal that CNTs laser-induced heating and subsequent cooling in solution take tens and hundreds of picoseconds, respectively. Given the reported transient behavior, these observations suggest novel ways for a T-jump methodology, unhindered by the requirement for excitation of water in the study of biological structures. They also provide the rate information needed for optimization of photothermal therapy that invokes infrared irradiation to selectively heat and annihilate cancer cells.

Additional Information

© 2009 American Chemical Society. Received September 23, 2009. Publication Date (Web): October 20, 2009. This work was supported by the NSF and Air Force Office of Scientific Research in the Gordon & Betty Moore Physical Biology Center at Caltech. We thank Mr. Akram S. Sadek for his effort in the initial phase of this work.

Additional details

August 19, 2023
October 19, 2023