Advanced thermoelectrics governed by a single parabolic band: Mg2Si0.3Sn0.7, a canonical example

2014 ◽  
Vol 16 (15) ◽  
pp. 6893-6897 ◽  
Author(s):  
Wei Liu ◽  
Hang Chi ◽  
Hui Sun ◽  
Qiang Zhang ◽  
Kang Yin ◽  
...  
Keyword(s):  
Conduction Band ◽  
Thermoelectric Performance ◽  
Scattering Parameters ◽  
Spb Model

Enhanced thermoelectric performance of Bi-doped Mg2Si0.3Sn0.7 with conduction band convergence has been successfully interpreted using the single parabolic band (SPB) model. The improved understanding of scattering parameters is important and instructive for further optimization of n-type Mg2Si0.3Sn0.7.

Hierarchical structures lead to high thermoelectric performance in Cum+nPb100SbmTe100Se2m (CLAST)

2021 ◽  
Author(s):  
Siqi Wang ◽  
Yu Xiao ◽  
Yongjin Chen ◽  
Shang Peng ◽  
Dongyang Wang ◽  
...  
Keyword(s):  
Hierarchical Structures ◽  
Phonon Transport ◽  
Thermoelectric Performance

Hierarchical microstructures lead to high thermoelectric performance in Cum+nPb100SbmTe100Se2m (CLAST) through synergistically optimizing carrier and phonon transport.

Experimental investigation and modelling of light scattering in a-Si:H solar cells deposited on glass/ZnO:Al substrates

2002 ◽  
Vol 715 ◽  
Author(s):  
J. Krc ◽  
M. Zeman ◽  
O. Kluth ◽  
F. Smole ◽  
M. Topic
Keyword(s):  
Surface Roughness ◽  
Experimental Investigation ◽  
Solar Cells ◽  
Angular Distribution ◽  
Light Scattering ◽  
Optical Model ◽  
Distribution Functions ◽  
Interface Roughness ◽  
Scattering Parameters ◽  
Good Agreement

AbstractThe descriptive scattering parameters, haze and angular distribution functions of textured ZnO:Al transparent conductive oxides with different surface roughness are measured. An approach to determine the scattering parameters of all internal interfaces in p-i-n a-Si:H solar cells deposited on the glass/ZnO:Al substrates is presented. Using the determined scattering parameters as the input parameters of the optical model, a good agreement between the measured and simulated quantum efficiencies of the p-i-n a-Si:H solar cells with different interface roughness is achieved.

Single Image Dehazing by Predicting Atmospheric Scattering Parameters

2020 ◽  
Vol 2020 (1) ◽  
pp. 74-77
Author(s):  
Simone Bianco ◽  
Luigi Celona ◽  
Flavio Piccoli
Keyword(s):  
Reference Image ◽  
Single Image ◽  
Scattering Parameters ◽  
Image Dehazing ◽  
Atmospheric Scattering ◽  
Local Structures ◽  
Full Reference ◽  
Reconstruction Quality ◽  
Single Image Dehazing

In this work we propose a method for single image dehazing that exploits a physical model to recover the haze-free image by estimating the atmospheric scattering parameters. Cycle consistency is used to further improve the reconstruction quality of local structures and objects in the scene as well. Experimental results on four real and synthetic hazy image datasets show the effectiveness of the proposed method in terms of two commonly used full-reference image quality metrics.

Minimization of the volume of reliability tests of the machines under development taking into account the reliability functions for certain types of failures

2020 ◽  
pp. 33-36
Author(s):  
A.S. Ivanov
Keyword(s):  
Random Variables ◽  
Test Time ◽  
Scattering Parameters ◽  
Degradation Failure

A method of minimizing the volume of reliability tests for non-recoverable machines at the stage of their development by increasing the test time and using forced modes is described. Keywords tests, degradation failure, reliability, scattering parameters, random variables [email protected]

scholarly journals Optimization of sodium hydroxide for securing high thermoelectric performance in polycrystalline Sn 1 − x Se via anisotropy and vacancy synergy

InfoMat ◽  
2019 ◽  
Vol 2 (6) ◽  
pp. 1201-1215 ◽  
Author(s):  
Xiao‐Lei Shi ◽  
Wei‐Di Liu ◽  
Ang‐Yin Wu ◽  
Van T. Nguyen ◽  
Han Gao ◽  
...  
Keyword(s):  
Sodium Hydroxide ◽  
Thermoelectric Performance

Nanostructured Te‒SnTe eutectic composites with enhanced thermoelectric performance

2021 ◽  
Vol 860 ◽  
pp. 158245
Author(s):  
Bin Yang ◽  
Shuangming Li ◽  
Xin Li ◽  
Zhenpeng Liu ◽  
Hong Zhong ◽  
...  
Keyword(s):  
Thermoelectric Performance

scholarly journals Restructured single parabolic band model for quick analysis in thermoelectricity

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Jianbo Zhu ◽  
Xuemei Zhang ◽  
Muchun Guo ◽  
Jingyu Li ◽  
Jinsuo Hu ◽  
...  
Keyword(s):  
Fermi Level ◽  
Carrier Concentration ◽  
Carrier Mobility ◽  
Optimization Design ◽  
State Of The Art ◽  
Band Model ◽  
Carrier Effective Mass ◽  
Intermediate Variables ◽  
Level Calculation ◽  
Spb Model

AbstractThe single parabolic band (SPB) model has been widely used to preliminarily elucidate inherent transport behaviors of thermoelectric (TE) materials, such as their band structure and electronic thermal conductivity, etc. However, in the SPB calculation, it is necessary to determine some intermediate variables, such as Fermi level or the complex Fermi-Dirac integrals. In this work, we establish a direct carrier-concentration-dependent restructured SPB model, which eliminates Fermi-Dirac integrals and Fermi level calculation and emerges stronger visibility and usability in experiments. We have verified the reliability of such restructured model with 490 groups of experimental data from state-of-the-art TE materials and the relative error is less than 2%. Moreover, carrier effective mass, intrinsic carrier mobility and optimal carrier concentration of these materials are systematically investigated. We believe that our work can provide more convenience and accuracy for thermoelectric data analysis as well as instructive understanding on future optimization design.

scholarly journals Power waves and scattering parameters in magneto-inductive systems

AIP Advances ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 045327
Author(s):  
A. Voronov ◽  
O. Sydoruk ◽  
R. R. A. Syms
Keyword(s):  
Scattering Parameters
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