Improved thermoelectric performance of BiCuSeO by Ag substitution at Cu site
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- 作者：M.U. Farooqa ; b ; Sajid Buttc ; d ; Kewei Gaoa ; Xiao L. Panga ; pangxl@mater.ustb.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Xigui Suna ; Asfandiyard ; Fida Mohmedd ; Abid Ahmadd ; Asif Mahmoode ; Nasir Mahmoodf ; g ; nasirm38@gmail.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：BiCu1&minus ; xAgxSeO ; Cu-site ; Thermal conductivity ; Thermoelectric materials ; ZT
- 刊名：Journal of Alloys and Compounds
- 出版年：2017
- 出版时间：15 January 2017
- 年：2017
- 卷：691
- 期：Complete
- 页码：572-577
- 全文大小：1824 K
文摘
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Ag-doped BiCuSeO is synthesized by high energy ball milling & SPS by replacing Cu.
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PVA results in stabilized pellets along with improved electrical conductivity.
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Ag-doping enhances the Seebeck coefficient due to improved electrical conductivity.
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The phonon scattering centers result 22% reduction in total thermal conductivity.
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The high ZT of 0.64 was attained at 923 K for BiCu1−xAgxSeO, 16% higher BiCuSeO.