Thermoelectric properties of nanoscale three dimensional Si phononic crystals
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- 作者：Lina Yanga ; Nuo Yangb ; c ; nuo@hust.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Baowen Lia ; Baowen.Li@Colorado.Edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Thermoelectrics ; Thermal conductivity ; Phononic crystal
- 刊名：International Journal of Heat and Mass Transfer
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：99
- 期：Complete
- 页码：102-106
- 全文大小：1221 K
文摘
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ZT of 3D Si PnC can be enhanced to 0.66 which is about 26 times larger than ZT of porous Si and 100 times larger than that of bulk Si.
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The electronic transport coefficients in 3D Si PnCs at 300 K are similar to those of bulk Si.
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The lattice thermal conductivity of 3D Si PnCs is largely decreased by a factor of 500.
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The 3D Si PnC is not only easy to be utilized than nanomaterials, but also much lower cost.