Submitted manuscript, 239 KB, PDF document
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
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TY - GEN
T1 - Immersion scanning thermal microscopy
T2 - International Conference on Fluid Flow, Heat and Mass Transfer
AU - Kolosov, Oleg
AU - Robinson, Benjamin
PY - 2015
Y1 - 2015
N2 - While Scanning Thermal Microscopy (SThM) using locally heated nanoscale probes is known for its ability to map heat transport and thermal properties of materials and devices with micro and nanoscale resolution. Such studies in the liquid environments were perceived to be impossible due to dominating heat dissipation from the heated probe into the surrounding liquid that would also deteriorate spatial resolution. Here we show that contrary to the common belief, the heat generated by the SThM nanoscale probe remains localised within the well-defined nanoscale volume, and that the amount of local heat transfer to the sample is comparable to the one of the standard ambient environment in organic and inorganic liquids. Moreover, the presence of liquid provides highly stable thermal contact between the probe tip and the sample eliminating one of the major drawbacks of the ambient or vacuum SThM’s – variability of such contact. We show that such immersion SThM, or iSThM can effectively observe the semiconductor devices with the resolution of few tens of nanometres, providing new tool for exploring thermal effects of chemical reactions and biological processes with nanoscale resolution.
AB - While Scanning Thermal Microscopy (SThM) using locally heated nanoscale probes is known for its ability to map heat transport and thermal properties of materials and devices with micro and nanoscale resolution. Such studies in the liquid environments were perceived to be impossible due to dominating heat dissipation from the heated probe into the surrounding liquid that would also deteriorate spatial resolution. Here we show that contrary to the common belief, the heat generated by the SThM nanoscale probe remains localised within the well-defined nanoscale volume, and that the amount of local heat transfer to the sample is comparable to the one of the standard ambient environment in organic and inorganic liquids. Moreover, the presence of liquid provides highly stable thermal contact between the probe tip and the sample eliminating one of the major drawbacks of the ambient or vacuum SThM’s – variability of such contact. We show that such immersion SThM, or iSThM can effectively observe the semiconductor devices with the resolution of few tens of nanometres, providing new tool for exploring thermal effects of chemical reactions and biological processes with nanoscale resolution.
KW - scanning thermal microscopy
KW - nanothermal
KW - heat transfer
KW - iSThM
KW - SThM
KW - immersion
KW - nanoscale heat transport
M3 - Conference contribution/Paper
BT - Proceedings of the 2nd International Conference on Fluid Flow, Heat and Mass Transfer
CY - Ottawa
Y2 - 30 April 2015 through 1 May 2015
ER -