Enhanced thermoelectric performance of Bi85Sb15-graphene composite by modulation carrier transport and density of state effective mass

2018 ◽  
Vol 745 ◽  
pp. 331-340 ◽  
Author(s):  
Mohamed S. El-Asfoury ◽  
Mohamed N.A. Nasr ◽  
Koichi Nakamura ◽  
Ahmed Abdel-Moneim
Keyword(s):  
Effective Mass ◽  
Carrier Transport ◽  
Thermoelectric Performance ◽  
Density Of State ◽  
Graphene Composite

Synergistic optimization of carrier transport and thermal conductivity in Sn-doped Cu2Te

2018 ◽  
Vol 6 (39) ◽  
pp. 18928-18937 ◽  
Author(s):  
Yuchong Qiu ◽  
Ying Liu ◽  
Jinwen Ye ◽  
Jun Li ◽  
Lixian Lian
Keyword(s):  
Thermal Conductivity ◽  
Fermi Level ◽  
Carrier Concentration ◽  
Power Factor ◽  
Carrier Transport ◽  
Lone Pair ◽  
Thermoelectric Performance ◽  
Degenerate Semiconductors ◽  
Lone Pair Electrons

Doping Sn into the Cu2Te lattice can synergistically enhance the power factor and decrease thermal conductivity, leading to remarkably optimized zTs. The lone pair electrons from the 5s orbital of Sn can increase the DOS near the Fermi level of Cu2Te to promote PF and reduce κe by decreasing the carrier concentration. This study explores a scalable strategy to optimize the thermoelectric performance for intrinsically highly degenerate semiconductors.

Solution-processed two-dimensional layered heterostructure thin-film with optimized thermoelectric performance

2017 ◽  
Vol 19 (27) ◽  
pp. 17560-17567 ◽  
Author(s):  
Tongzhou Wang ◽  
Congcong Liu ◽  
Fengxing Jiang ◽  
Zhaofen Xu ◽  
Xiaodong Wang ◽  
...  
Keyword(s):  
Thin Film ◽  
Power Factor ◽  
Carrier Transport ◽  
Thermoelectric Performance ◽  
Two Dimensional ◽  
Transport Barrier ◽  
Solution Processed

The content of rGO could alter the carrier transport barrier, and the optimizing power factor was achieved at rGO–MS2 junctions.

scholarly journals Enhanced thermoelectric performance in n-type polycrystalline SnSe by PbBr2 doping

RSC Advances ◽  
2017 ◽  
Vol 7 (29) ◽  
pp. 17906-17912 ◽  
Author(s):  
Debo Li ◽  
Xiaojian Tan ◽  
Jingtao Xu ◽  
Guoqiang Liu ◽  
Min Jin ◽  
...  
Keyword(s):  
Effective Mass ◽  
Carrier Concentration ◽  
Thermoelectric Performance

By increasing the carrier concentration and the DOS effective mass, a ZT of 0.54 was achieved at 793 K.

Effects of Cu addition on band gap energy, density of state effective mass and charge transport properties in Bi2Te3 composites

RSC Advances ◽  
2014 ◽  
Vol 4 (82) ◽  
pp. 43811-43814 ◽  
Author(s):  
Hyeon Jin Yu ◽  
Mahn Jeong ◽  
Young Soo Lim ◽  
Won-Seon Seo ◽  
O-Jong Kwon ◽  
...  
Keyword(s):  
Energy Density ◽  
Charge Transport ◽  
Transport Properties ◽  
Band Gap ◽  
Effective Mass ◽  
Band Gap Energy ◽  
Density Of State ◽  
Gap Energy

The effects of Cu addition on band gap energy, effective mass, and charge transport properties in n-type CuxBi2Te3 composites are presented.

Synergistic tuning of carrier mobility, effective mass, and point defects scattering triggered high thermoelectric performance in n-type Ge-doped PbTe

2019 ◽  
Vol 125 (5) ◽  
pp. 055104 ◽  
Author(s):  
Zhengshang Wang ◽  
Huan He ◽  
Xudong Cui ◽  
Hangtian Liu ◽  
Wenbin Qiu ◽  
...  
Keyword(s):  
Effective Mass ◽  
Point Defects ◽  
Carrier Mobility ◽  
Thermoelectric Performance

Extending Channel Scaling Limit of p-MOSFETs Through Antimonene With Heavy Effective Mass and High Density of State

2022 ◽  
pp. 1-6
Author(s):  
Shengli Zhang ◽  
Hengze Qu ◽  
Jiang Cao ◽  
Yangyang Wang ◽  
Shengyuan A. Yang ◽  
...  
Keyword(s):  
Effective Mass ◽  
Scaling Limit ◽  
High Density ◽  
Density Of State

Fabrication of well-isolated graphene and evaluation of thermoelectric performance of polyaniline–graphene composite film

2018 ◽  
Vol 54 (5) ◽  
pp. 3904-3913 ◽  
Author(s):  
Takuji Ube ◽  
Jun Koyanagi ◽  
Takahiro Kosaki ◽  
Kenjiro Fujimoto ◽  
Tomohiro Yokozeki ◽  
...  
Keyword(s):  
Composite Film ◽  
Thermoelectric Performance ◽  
Graphene Composite
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