Experimental up-scaling of thermal conductivity reductions in silicon by vacancy-engineering: From the nano- to the micro-scale
Experimental up-scaling of thermal conductivity reductions in silicon by vacancy-engineering: From the nano- to the micro-scale
复制标题
通过空位工程提高硅导热系数降低的实验规模:从纳米尺度到微米尺度
DOI:
10.1016/j.matpr.2017.12.267
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Wight N
中科院分区:
文献类型:
--
作者:
Wight N
A method to reduce the thermal conductivity in Si thin-films by at least an order of magnitude is shown, successfully demonstrating the up-scaling of this technique from Si nano-films. High energy self implantation of Si is used to create a supersaturation of lattice vacancy concentrations that remain following post implant rapid thermal annealing producing a disruption in phonon mode thermal transport. This method demonstrates an approach for micro-harvesting thermoelectric device applications without the difficulties faced for dimensional up-scaling in alternative Si thermoelectric approaches. Challenges surrounding the thermal budget required for post implant dopant activation in p-type Si are also shown.
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