scholarly journals High thermoelectric performance of p-BiSbTe compounds prepared by ultra-fast thermally induced reaction

2017 ◽  
Vol 10 (12) ◽  
pp. 2638-2652 ◽  
Author(s):  
Gang Zheng ◽  
Xianli Su ◽  
Hongyao Xie ◽  
Yuejiao Shu ◽  
Tao Liang ◽  
...  
Keyword(s):  
Temperature Gradient ◽  
Thermoelectric Material ◽  
Conversion Efficiency ◽  
High Performance ◽  
Thermoelectric Performance ◽  
Thermally Induced ◽  
Induced Reaction

High performance Bi2Te3-based thermoelectric material and modules with a conversion efficiency of 5.2% under a temperature gradient of 250 K were synthesized by TIFS.

High thermoelectric performance in Bi0.46Sb1.54Te3 nanostructured with ZnTe

2018 ◽  
Vol 11 (6) ◽  
pp. 1520-1535 ◽  
Author(s):  
Rigui Deng ◽  
Xianli Su ◽  
Shiqiang Hao ◽  
Zheng Zheng ◽  
Min Zhang ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
High Performance ◽  
Thermoelectric Performance

High performance BiSbTe alloy and modules with a conversion efficiency of 5% are achieved through integrating Zn induced defect complexity with nanostructuring.

scholarly journals High performance polypyrrole/SWCNTs composite film as a promising organic thermoelectric material

RSC Advances ◽  
2021 ◽  
Vol 11 (29) ◽  
pp. 17704-17709
Author(s):  
Zhaohua Liu ◽  
Jiye Sun ◽  
Haijun Song ◽  
Yicheng Pan ◽  
Yufei Song ◽  
...  
Keyword(s):  
Low Temperature ◽  
Composite Film ◽  
Thermoelectric Material ◽  
High Performance ◽  
Interfacial Polymerization ◽  
Composite Films ◽  
Thermoelectric Performance

PPy/SWCNTs composite films with high thermoelectric performance were prepared by chemical interfacial polymerization under a controlled low temperature.

Thermoelectric Potential of Bi and Bi1−x Sbx Nanowire Arrays

2001 ◽  
Vol 691 ◽  
Author(s):  
M. S. Dresselhaus ◽  
Y.-M. Lina ◽  
O. Rabin ◽  
S. B. Cronin ◽  
M. R. Black ◽  
...  
Keyword(s):  
Thermoelectric Material ◽  
High Performance ◽  
Wire Diameter ◽  
Nanowire Arrays ◽  
Thermoelectric Performance ◽  
The Wire ◽  
Low Dimensional

ABSTRACTThe potential of Bi and Bi1−x Sbx nanowire arrays for thermoelectric applications is discussed. The advantages of bismuth as a low dimensional thermoelectric material are enumerated and the role of modeling is emphasized. The advantages of using the Sb concentration as well as the wire diameter as materials parameters for optimizing the thermoelectric performance of these nanowires are discussed, with particular emphasis given to the development of a high performance p-type nanowire thermoelectric material.

scholarly journals Study of Conventional Sintered Cu2Se Thermoelectric Material

Energies ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 401 ◽  
Author(s):  
Dongliang Shi ◽  
Zhiming Geng ◽  
Kwok Lam
Keyword(s):  
Thermoelectric Material ◽  
High Performance ◽  
Low Cost ◽  
Cost Effective ◽  
Industrial Applications ◽  
Lead Free ◽  
Thermoelectric Performance ◽  
Copper Chalcogenides ◽  
Conventional Sintering ◽  
Sintering Method

Lead-free thermoelectric material, copper chalcogenides, have been attracting much interest from many research and industrial applications owing to their high capability of harvesting energy from heat. The state-of-the-art copper chalcogenides are commonly fabricated by the spark plasma sintering (SPS) and hot pressing (HP) techniques. Those methods are still costly and complicated particularly when compared to the conventional solid-state sintering method. Here, we report an easy-to-fabricate lead-free copper(I)-selenium (Cu2Se) that was fabricated using the conventional sintering method. The fabrication conditions, including sintering temperature and dwelling time, have been systematically studied to optimize the thermoelectric performance of Cu2Se. The optimized zT value for the pure Cu2Se was found to be 1.2 for the sample sintered at 1173 K for 2 h. The study shows that Cu2Se developed using the simple and low-cost techniques could exhibit comparable thermoelectric performance when compared with those fabricated by the SPS method, which provides an alternative potential technique to synthesize high-performance thermoelectric materials in a cost-effective way for industrialization.

Engineering electronic band structure and thermoelectric performance of GeTe via lattice structure manipulation from first-principles

2021 ◽  
Author(s):  
Tianyu Wang ◽  
Chun Zhang ◽  
Jia-Yue Yang ◽  
Linhua Liu
Keyword(s):  
Band Structure ◽  
Thermoelectric Material ◽  
First Principles ◽  
High Performance ◽  
Figure Of Merit ◽  
Electronic Band Structure ◽  
Lattice Structure ◽  
Thermoelectric Performance ◽  
Electronic Band ◽  
Band Engineering

GeTe has become a high-performance thermoelectric material with a figure of merit (ZT) over two through alloying and band engineering strategies. Yet, the question on how to effective engineer electronic...

High performance in Ge0.75Pb0.25Te0.5Se0.5solid solution thermoelectric material

2014 ◽  
Vol 31 (3) ◽  
pp. 221
Author(s):  
Junqin Li ◽  
Caiyan Wang ◽  
Zhengwang Lu ◽  
Haitao Li ◽  
Fusheng Liu ◽  
...  
Keyword(s):  
Thermoelectric Material ◽  
High Performance

Interfacial self-assembly engineering for constructing a 2D flexible superlattice polyoxometalate/rGO heterojunction for high-performance photovoltaic devices

2020 ◽  
Vol 49 (12) ◽  
pp. 3766-3774 ◽  
Author(s):  
Jianping Li ◽  
Dai Wu ◽  
Chunlei Wang ◽  
Ding Liu ◽  
Weilin Chen ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Self Assembly ◽  
High Performance ◽  
Photoelectric Conversion Efficiency ◽  
Photovoltaic Devices ◽  
Photoelectric Conversion

The strategy of constructing a 2D flexible superlattice polyoxometalate/rGO heterojunction is proposed to improve the photoelectric conversion efficiency of photovoltaic devices.

scholarly journals Antireflection Improvement and Junction Quality Optimization of Si/PEDOT:PSS Solar Cell with the Introduction of Dopamine@Graphene

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5986
Author(s):  
Tao Chen ◽  
Hao Guo ◽  
Leiming Yu ◽  
Tao Sun ◽  
Anran Chen ◽  
...  
Keyword(s):  
Solar Cell ◽  
Conversion Efficiency ◽  
High Performance ◽  
Electrochemical Impedance ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Electrochemical Impedance Spectra ◽  
Solar Cell Performance ◽  
Photovoltaic Conversion ◽  
Photovoltaic Conversion Efficiency

Si/PEDOT: PSS solar cell is an optional photovoltaic device owing to its promising high photovoltaic conversion efficiency (PCE) and economic manufacture process. In this work, dopamine@graphene was firstly introduced between the silicon substrate and PEDOT:PSS film for Si/PEDOT: PSS solar cell. The dopamine@graphene was proved to be effective in improving the PCE, and the influence of mechanical properties of dopamine@graphene on solar cell performance was revealed. When dopamine@graphene was incorporated into the cell preparation, the antireflection ability of the cell was enhanced within the wavelength range of 300~450 and 650~1100 nm. The enhanced antireflection ability would benefit amount of the photon-generated carriers. The electrochemical impedance spectra test revealed that the introduction of dopamine@graphene could facilitate the separation of carriers and improve the junction quality. Thus, the short-circuit current density and fill factor were both promoted, which led to the improved PCE. Meanwhile, the influence of graphene concentration on device performances was also investigated. The photovoltaic conversion efficiency would be promoted from 11.06% to 13.15% when dopamine@graphene solution with concentration 1.5 mg/mL was applied. The achievements of this study showed that the dopamine@graphene composites could be an useful materials for high-performance Si/PEDOT:PSS solar cells.

scholarly journals High performance tandem organic solar cells via a strongly infrared-absorbing narrow bandgap acceptor

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhenrong Jia ◽  
Shucheng Qin ◽  
Lei Meng ◽  
Qing Ma ◽  
Indunil Angunawela ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
High Performance ◽  
Short Circuit ◽  
Power Conversion ◽  
High Power Conversion Efficiency ◽  
Device Structure ◽  
Narrow Bandgap

AbstractTandem organic solar cells are based on the device structure monolithically connecting two solar cells to broaden overall absorption spectrum and utilize the photon energy more efficiently. Herein, we demonstrate a simple strategy of inserting a double bond between the central core and end groups of the small molecule acceptor Y6 to extend its conjugation length and absorption range. As a result, a new narrow bandgap acceptor BTPV-4F was synthesized with an optical bandgap of 1.21 eV. The single-junction devices based on BTPV-4F as acceptor achieved a power conversion efficiency of over 13.4% with a high short-circuit current density of 28.9 mA cm−2. With adopting BTPV-4F as the rear cell acceptor material, the resulting tandem devices reached a high power conversion efficiency of over 16.4% with good photostability. The results indicate that BTPV-4F is an efficient infrared-absorbing narrow bandgap acceptor and has great potential to be applied into tandem organic solar cells.

TiO2 cement for high-performance dye-sensitized solar cells

RSC Advances ◽  
2016 ◽  
Vol 6 (87) ◽  
pp. 83802-83807 ◽  
Author(s):  
Yu Hou ◽  
Shuang Yang ◽  
Chunzhong Li ◽  
Huijun Zhao ◽  
Hua Gui Yang
Keyword(s):  
Solar Cells ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
High Performance ◽  
Dye Sensitized Solar Cells ◽  
Energy Conversion Efficiency ◽  
Dye Sensitized ◽  
Degussa P25 ◽  
Sensitized Solar Cells

An energy conversion efficiency of 8.31% is reached by using a cemented photoanode for dye-sensitized solar cells, attaining a 31.1% improvement over the standard Degussa P25 sample.

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