Probing Phonons in Nonpolar Semiconducting Nanowires with Raman Spectroscopy

<table>Calculated Raman line shape of the 520 cm<sup>−1</sup> band of Si nanowires subjected to laser inhomogeneous heating. The focal spot size is 1 <i>μ</i>m in the micro-Raman focal plane. Results are calculated using (<a href="https://static.hindawi.com/articles/jnt/volume-2012/264198/figures/#EEq10">10</a>) at the different peak temperatures indicated for (a) <svg height="11.0375" id="M90" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 51.400002 11.0375" width="51.400002" xmlns="http://www.w3.org/2000/svg">
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<text transform="matrix(1,0,0,-1,-71.95,63.4)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐷</tspan>
<tspan style="font-size: 12.50px; " x="13.340701" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="25.38109" y="0">6</tspan>
<tspan style="font-size: 12.50px; " x="31.632589" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="34.758339" y="0">0</tspan>
</text>
</g>
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</svg> nm and (b) <svg height="10.9125" id="M91" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 47.487499 10.9125" width="47.487499" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.9125)">
<g transform="translate(72,-63.27)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐷</tspan>
<tspan style="font-size: 12.50px; " x="13.340701" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="25.38109" y="0">2</tspan>
<tspan style="font-size: 12.50px; " x="31.632589" y="0">3</tspan>
</text>
</g>
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</svg> nm nanowires [<a href="/journals/jnt/2012/264198/#B38">44</a>–<a href="/journals/jnt/2012/264198/#B40">46</a>].</table>

Journal of Nanotechnology

fig9

Figure 9

Figure 9: Probing Phonons in Nonpolar Semiconducting Nanowires with Raman Spectroscopy 