Li, Sha and Zhang, Kai and Yang, Jui-Ming and Lin, Liwei and Yang, Haw (2007) Single quantum dots as local temperature markers. NANO LETTERS, 7 (10). pp. 3102-3105.
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Official URL: http://pubs.acs.org/doi/abs/10.1021/nl071606p
This work describes noncontact, local temperature measurements using wavelength shifts of CdSe quantum dots (QDs). Individual QDs are demonstrated to be capable of sensing temperature variations and reporting temperature changes remotely through optical readout. Temperature profiles of a microheater under different input voltages are evaluated based on the spectral shift of QDs on the heater, and results are consistent with a one-dimensional electrothermal model. The theoretical resolution of this technique could go down to the size of a single quantum dot using far-field optics for temperature characterizations of micro/nanostructures.
|Subjects:||Analytical Science > Nanotechnology for sensing and actuating|
Physical Science > Nano objects
Physical Science > Quantum phenomena
|Deposited On:||07 Aug 2009 12:37|
|Last Modified:||07 Aug 2009 12:37|
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