Semiconducting polymer contributes favorably to the Seebeck coefficient in multi-component, high-performance n-type thermoelectric nanocomposites

2020 ◽  
Vol 8 (19) ◽  
pp. 9797-9805 ◽  
Author(s):  
Junhui Tang ◽  
Ruisi Chen ◽  
Lidong Chen ◽  
Guillermo C. Bazan ◽  
Ziqi Liang
Keyword(s):  
Seebeck Coefficient ◽  
High Performance ◽  
Semiconducting Polymer ◽  
Inorganic And Organic ◽  
Thermoelectric Nanocomposites

n-Type Co NWs/N2200 TENCs yield a high S, mainly from the semiconducting polymer, yet σ is limited by poor connectivity between inorganic and organic domains. By adding flexible n-doped SWCNTs to yield more conductive paths, σ and mechanical bendability are greatly enhanced.

scholarly journals Correction: Semiconducting polymer contributes favorably to the Seebeck coefficient in multi-component, high-performance n-type thermoelectric nanocomposites

2021 ◽  
Author(s):  
Junhui Tang ◽  
Ruisi Chen ◽  
Lidong Chen ◽  
Guillermo C. Bazan ◽  
Ziqi Liang
Keyword(s):  
Seebeck Coefficient ◽  
High Performance ◽  
Semiconducting Polymer ◽  
Thermoelectric Nanocomposites

Correction for ‘Semiconducting polymer contributes favorably to the Seebeck coefficient in multi-component, high-performance n-type thermoelectric nanocomposites’ by Junhui Tang et al., J. Mater. Chem. A, 2020, 8, 9797–9805, DOI: 10.1039/d0ta02388d.

Balancing the electrical conductivity and Seebeck coefficient by controlled interfacial doping towards high performance benzothienobenzothiophene-based organic thermoelectric materials

2019 ◽  
Vol 7 (43) ◽  
pp. 24982-24991 ◽  
Author(s):  
Jingjuan Tan ◽  
Zhanhua Chen ◽  
Dagang Wang ◽  
Shihui Qin ◽  
Xu Xiao ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Seebeck Coefficient ◽  
Thermoelectric Materials ◽  
High Performance ◽  
Organic Thermoelectric Materials

A generally applicable strategy of balancing the electrical conductivity and Seebeck coefficient for high-performance organic thermoelectric composites by controlled interfacial doping.

scholarly journals Fine-Tuning Semiconducting Polymer Self-Aggregation and Crystallinity Enables Optimal Morphology and High-Performance Printed All-Polymer Solar Cells

2019 ◽  
Vol 142 (1) ◽  
pp. 392-406 ◽  
Author(s):  
Yilei Wu ◽  
Sebastian Schneider ◽  
Christopher Walter ◽  
Ashraful Haider Chowdhury ◽  
Behzad Bahrami ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Fine Tuning ◽  
Semiconducting Polymer ◽  
Self Aggregation

Graphene assisting magnetic alignment of a high-performance semiconducting polymer for improved carrier transport

2020 ◽  
Vol 117 (6) ◽  
pp. 063301
Author(s):  
Songlin Su ◽  
Guoxing Pan ◽  
Xuhua Xiao ◽  
Qi Wang ◽  
Fapei Zhang
Keyword(s):  
High Performance ◽  
Carrier Transport ◽  
Magnetic Alignment ◽  
Semiconducting Polymer

scholarly journals Efficient interlayer charge release for high-performance layered thermoelectrics

2020 ◽  
Author(s):  
Hao Zhu ◽  
Zhou Li ◽  
Chenxi Zhao ◽  
Xingxing Li ◽  
Jinlong Yang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Electrical Conductivity ◽  
Seebeck Coefficient ◽  
Carrier Concentration ◽  
High Performance ◽  
Lattice Thermal Conductivity ◽  
Transport Barrier ◽  
High Seebeck Coefficient ◽  
Valence Bands ◽  
Increase Carrier Concentration

Abstract Many layered superlattice materials intrinsically possess large Seebeck coefficient and low lattice thermal conductivity, but poor electrical conductivity because of the interlayer transport barrier for charges, which has become a stumbling block for achieving high thermoelectric performance. Herein, taking BiCuSeO superlattice as an example, it is demonstrated that efficient interlayer charge release can increase carrier concentration, thereby activating multiple Fermi pockets through Bi/Cu dual vacancies and Pb codoping. Experimental results reveal that the extrinsic charges, which are introduced by Pb and initially trapped in the charge-reservoir [Bi2O2]2+ sublayers, are effectively released into [Cu2Se2]2− sublayers via the channels bridged by Bi/Cu dual vacancies. This efficient interlayer charge release endows dual-vacancy- and Pb-codoped BiCuSeO with increased carrier concentration and electrical conductivity. Moreover, with increasing carrier concentration, the Fermi level is pushed down, activating multiple converged valence bands, which helps to maintain a relatively high Seebeck coefficient and yield an enhanced power factor. As a result, a high ZT value of ∼1.4 is achieved at 823 K in codoped Bi0.90Pb0.06Cu0.96SeO, which is superior to that of pristine BiCuSeO and solely doped samples. The present findings provide prospective insights into the exploration of high-performance thermoelectric materials and the underlying transport physics.

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