Thermal devices and thermometry

Summary:

Accurate temperature measurement with high spatial and temporal resolution is a challenging research topic. Advances in nanosciences and nanobiotechnologies require precise thermometry down to the nanoscale regime where conventional methods are no more relevant. The development of a nanoscale thermometer is not only a matter of size, but also requires materials with novel physical properties along with dedicated nanocharacterization techniques. This project aims at developing thermal nanocharacterization techniques with a high spatial and temporal resolution in dry and liquid conditions using fluorescent probes or phase transition materials.

Thermal characterization of a wire-based thermal device using a fluorescent probe (Rhodamine B)

Mapping a transient heating event in an operating thermal device using bistable spin transition material

 

Contact:

C. Bergaud

 

Collaborations:

L. Aigouy, ESPCI, Paris ; M. Mortier, ENSCP, Paris ; G. Molnar and A. Bousseksou, LCC, Toulouse ; G. Baffou and H. Rigneault, Institut Fresnel, Marseille ; C. Gosse, C2N, Paris

 

Financial Support:

ANR Project Nanothermofluo 2007-2010 and ANR Project Thermospin 2011-2014

 

Selective list of publications:

  • P. Löw et al. High spatial resolution surface temperature mapping using fluorescent thermometry”, Small 4, No. 7, 908–914, 2008.
  • L. Salmon et al. « Rational design of fluorescent spin-crossover nanoparticle dispersions for thermometry and thermal imaging”, J. Mater. Chem., 20, 5499–5503, 2010.
  • L. Aigouy et al. “A scanning thermal probe microscope that operates in liquids”, Rev. Sci. Instrum. 82(3), 036106, 2011
  • O. Kraieva et al. “High spatial resolution imaging of transient thermal events using bistable nanothermometers”, Small, To be published, 2016.
  • Charlie Gosse, Christian Bergaud and Peter Löw, "Molecular probes for thermometry in microfluidic devices", in Sebastian Volz, "Thermal Nanosystems and Nanomaterials", Springer, Collection "Topics in Applied Physics", 118, 301-341, 2009