Modulation doping and energy filtering as effective ways to improve the thermoelectric power factor

2016 ◽  
Vol 15 (1) ◽  
pp. 16-26 ◽  
Author(s):  
Neophytos Neophytou ◽  
Mischa Thesberg
Keyword(s):  
Thermoelectric Power ◽  
Power Factor ◽  
Modulation Doping ◽  
Thermoelectric Power Factor ◽  
Energy Filtering

Improved thermoelectric power factor achieved by energy filtering in ZnO:Mg/ZnO hetero-structures

2021 ◽  
Vol 721 ◽  
pp. 138537
Author(s):  
Anh Tuan Thanh Pham ◽  
Phuong Thanh Ngoc Vo ◽  
Hanh Kieu Thi Ta ◽  
Hoa Thi Lai ◽  
Vinh Cao Tran ◽  
...  
Keyword(s):  
Thermoelectric Power ◽  
Power Factor ◽  
Thermoelectric Power Factor ◽  
Energy Filtering

Silicon de novo: energy filtering and enhanced thermoelectric performances of nanocrystalline silicon and silicon alloys

2015 ◽  
Vol 3 (47) ◽  
pp. 12176-12185 ◽  
Author(s):  
Dario Narducci ◽  
Stefano Frabboni ◽  
Xanthippi Zianni
Keyword(s):  
Thermoelectric Power ◽  
Power Factor ◽  
De Novo ◽  
Nanocrystalline Silicon ◽  
Second Phase ◽  
Phase Precipitation ◽  
Silicon Alloys ◽  
Thermoelectric Power Factor ◽  
Energy Filtering

Energy filtering due to second-phase precipitation in nanocrystalline silicon may lead to remarkable improvements of its thermoelectric power factor.

Thermoelectric polymer films with a significantly high Seebeck coefficient and thermoelectric power factor obtained through surface energy filtering

2020 ◽  
Vol 8 (27) ◽  
pp. 13600-13609 ◽  
Author(s):  
Xin Guan ◽  
Erol Yildirim ◽  
Zeng Fan ◽  
Wanheng Lu ◽  
Bichen Li ◽  
...  
Keyword(s):  
Surface Energy ◽  
Seebeck Coefficient ◽  
Thermoelectric Power ◽  
Power Factor ◽  
Polymer Films ◽  
Thermoelectric Power Factor ◽  
Energy Filtering ◽  
High Seebeck Coefficient ◽  
Rhodamine 101

Coating with Rhodamine 101 can significantly enhance the Seebeck coefficient of PEDOT:PSS, and surface energy filtering is proposed to be the reason for this effect.

ENHANCEMENT OF THERMOELECTRIC POWER FACTOR BY A SILICON SPACER IN MODULATION-DOPED Si-HMS-Si

NANO ◽  
2011 ◽  
Vol 06 (05) ◽  
pp. 481-487 ◽  
Author(s):  
Q. R. HOU ◽  
B. F. GU ◽  
Y. B. CHEN ◽  
Y. J. HE
Keyword(s):  
Electrical Resistivity ◽  
Thermoelectric Power ◽  
Power Factor ◽  
Sandwich Structure ◽  
Silicon Layer ◽  
Modulation Doping ◽  
Thermoelectric Power Factor ◽  
Doped Silicon ◽  
Spacer Thickness ◽  
Weakly Dependent

The introduction of an un-doped silicon layer (spacer) enhances significantly the thermoelectric power factor in modulation-doped Si(Al)-MnSi1.7-Si(Al) sandwich structure. This un-doped silicon layer is inserted between the MnSi1.7 (HMS) and Al -doped silicon layers. With a proper spacer thickness, the electrical resistivity decreases sharply and is weakly dependent on temperature from 300 K to 683 K. As a result, the thermoelectric power factor can reach 0.973 × 10-3 W/m-K2 at 683 K, which is about ten times larger than that of an ordinary MnSi1.7 film without modulation doping.

Enhancement of the thermoelectric power factor of MnSi1.7 film by modulation doping of Al and Cu

2013 ◽  
Vol 114 (3) ◽  
pp. 943-949 ◽  
Author(s):  
Q. R. Hou ◽  
B. F. Gu ◽  
Y. B. Chen ◽  
Y. J. He ◽  
J. L. Sun
Keyword(s):  
Thermoelectric Power ◽  
Power Factor ◽  
Modulation Doping ◽  
Thermoelectric Power Factor
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