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.

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.

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.

Investigation of Structural and Thermoelectric Properties of Bismuth Selenide Thin Films

2020 ◽  
Vol 10 ◽  
Author(s):  
Harsha Sharma ◽  
Yogesh Chandra Sharma
Keyword(s):  
Thin Films ◽  
Seebeck Coefficient ◽  
Thermoelectric Properties ◽  
Thermoelectric Material ◽  
Power Factor ◽  
High Performance ◽  
Compositional Variation ◽  
Bismuth Selenide ◽  
Thermoelectric Devices ◽  
Composition Ratio

Background: Thermoelectric material with high performance and low cost is the basic need of today. Bismuth selenide is a thermoelectric material. A set of bismuth selenide thin films having different stoichiometry ratio varying Bi/Se ratio from 0.123 to 0.309 have been prepared. Objective: Present work deals with the synthesis and characterization of various thin films of bismuth selenide. Thermoe-lectric properties of thin films were also investigated. Aim of this work is to investigate the effect of composition ratio on the structural and thermoelectric properties and to find out the best stoichiometry ratio of bismuth selenide thin films which can be used in application of thermoelectric devices. Method: The set of bismuth selenide thin films having different elemental compositions were prepared by employing thermal evaporation technique. Crystal structure and elemental composition of thin films were investigated by XRD and EDAX respectively. Roughness of films were analysed by AFM. Thermoelectric properties of various thin films were al-so measured. Results: XRD spectrum confirms the formation of phases formed in thin films which slightly matched with standard data. AFM results indicate that surface of films are smooth and nanoparticles are generated on surface. AFM results indicate that the surfaces of annealed thin films are smoother than as-deposited thin films. Seebeck coefficient found negative throughout the temperature rang. Power factor is also calculated by Seebeck coefficient and results reveal effect of com-position ratio on Seebeck coefficient , electrical conductivity and power factor. Thin films having the composition ratio of 0.182 exhibited the highest power factor. Conclusion: This study provides relevant basic information of the thermoelectric property of thin films. As well as pre-sents the effect of compositional variation on thermoelectric measurements. From the application point of view in the thermoelectric devices the best stoichiometric thin films out of four prepared thin films have been presented.

A Fluorinated Phenylene Unit as a Building Block for High-Performance n-Type Semiconducting Polymer

2013 ◽  
Vol 25 (18) ◽  
pp. 2583-2588 ◽  
Author(s):  
Jung Ha Park ◽  
Eui Hyuk Jung ◽  
Jae Woong Jung ◽  
Won Ho Jo
Keyword(s):  
Building Block ◽  
High Performance ◽  
Semiconducting Polymer
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