【摘 要】
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Here we present a thermal measurement technique that is capable of profiling the thermal conductance of an individual nanowire with a spatial resolution bet
【机 构】
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DepartmentofElectricalandComputerEngineering,NationalUniversityofSingapore,Singapore117576,Republico
【出 处】
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The 2nd International Conference on Phononics and thermal En
论文部分内容阅读
Here we present a thermal measurement technique that is capable of profiling the thermal conductance of an individual nanowire with a spatial resolution better than 20nm1.In this technique,a focused electron beam is employed as a localized heat source to establish a temperature gradient along the nanowire.The heat fluxes from the two ends of the nanowire are measured using platinum resistance thermometers on two suspended thermally-isolated islands from which the local thermal conductivity can be derived.By using this technique,not only can the local thermal conductance of the nanowire be probed,but the thermal boundary resistance across the interface between two material segments of the nanowire can also be measured.In this lecture,we will focus on the implementation of this technique as well as some applications.
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