Achieving high thermoelectric performance through constructing coherent interfaces and building interface potential barriers in n-type Bi2Te3/Bi2Te2.7Se0.3 nanocomposites

2019 ◽  
Vol 7 (32) ◽  
pp. 19120-19129 ◽  
Author(s):  
Bushra Jabar ◽  
Xiaoying Qin ◽  
Di Li ◽  
Jian Zhang ◽  
Adil Mansoor ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Conversion Efficiency ◽  
Energy Conversion Efficiency ◽  
Thermoelectric Performance ◽  
Potential Barriers ◽  
Interface Potential ◽  
Coherent Interfaces

Through incorporation of isostructural Bi2Te3 nanoinclusions in n-type Bi2Te2.7Se0.3 we achieve unprecedented energy-conversion efficiency η = 10.5% with record high ZTmax = 1.35.

Realizing high thermoelectric performance with comparable p- and n-type figure-of-merits in a graphene/h-BN superlattice monolayer

2019 ◽  
Vol 21 (48) ◽  
pp. 26630-26636
Author(s):  
Zizhen Zhou ◽  
Dengdong Fan ◽  
Huijun Liu
Keyword(s):  
Energy Conversion ◽  
Conversion Efficiency ◽  
Environmentally Friendly ◽  
Energy Conversion Efficiency ◽  
Thermoelectric Performance ◽  
Earth Abundant ◽  
Te Modules

We demonstrate that the superlattice monolayer consisting of light, earth-abundant, and environmentally friendly elements can be designed as perfect TE modules with comparable p- and n-type energy conversion efficiency.

First-principles study on the electronic and optical properties of the orthorhombic CsPbBr3 and CsPbI3 with Cmcm space group

2021 ◽  
Author(s):  
Xianhao Zhao ◽  
Tianyu Tang ◽  
Quan Xie ◽  
like gao ◽  
Limin Lu ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
First Principles ◽  
Energy Conversion Efficiency ◽  
Space Group ◽  
Absorbing Materials ◽  
Halide Perovskites ◽  
Lead Halide

The cesium lead halide perovskites are regarded as effective candidates for light-absorbing materials in solar cells, which have shown excellent performances in experiments such as promising energy conversion efficiency. In...

Metal-like electrical conductivity in LaxSr2−xTiMoO6 oxides for high temperature thermoelectric power generation

2017 ◽  
Vol 46 (18) ◽  
pp. 5872-5879 ◽  
Author(s):  
Mandvi Saxena ◽  
Tanmoy Maiti
Keyword(s):  
Power Generation ◽  
Electrical Conductivity ◽  
High Temperature ◽  
Energy Conversion ◽  
Thermoelectric Power ◽  
Conversion Efficiency ◽  
Energy Conversion Efficiency ◽  
Power Generators ◽  
Thermoelectric Power Generation

Increasing electrical conductivity in oxides, which are inherently insulators, can be a potential route in developing oxide-based thermoelectric power generators with higher energy conversion efficiency.

Performance Improvements in Cooker-Top Gas Burners for Small Aspect Ratio Changes

2017 ◽  
Vol 9 (4) ◽  
Author(s):  
Robson L. Silva ◽  
Bruno V. Sant′Ana ◽  
José R. Patelli ◽  
Marcelo M. Vieira
Keyword(s):  
Energy Conversion ◽  
Fuel Consumption ◽  
Conversion Efficiency ◽  
Minimum Energy ◽  
Energy Conversion Efficiency ◽  
Energy Performance ◽  
Operating Conditions ◽  
Lower Fuel Consumption ◽  
Performance Improvements ◽  
Aspect Ratios

This paper aims to identify performance improvements in cooker-top gas burners for changes in its original geometry, with aspect ratios (ARs) ranging from 0.25 to 0.56 and from 0.28 to 0.64. It operates on liquefied petroleum gas (LPG) and five thermal power (TP) levels. Considering the large number of cooker-top burners currently being used, even slight improvements in thermal performance resulting from a better design and recommended operating condition will lead to a significant reduction of energy consumption and costs. Appropriate instrumentation was used to carry out the measurements and methodology applied was based on regulations from INMETRO (CONPET program for energy conversion efficiency in cook top and kilns), ABNT (Brazilian Technical Standards Normative) and ANP—National Agency of Petroleum, Natural Gas (NG) and Biofuels. The results allow subsidizing recommendations to minimum energy performance standards (MEPS) for residential use, providing also higher energy conversion efficiency and/or lower fuel consumption. Main conclusions are: (i) Smaller aspect ratios result in the same heating capacity and higher efficiency; (ii) higher aspect ratios (original burners) are fuel consuming and inefficient; (iii) operating conditions set on intermediate are lower fuel consumption without significant differences in temperature increases; (iv) Reynolds number lower than 500 provides higher efficiencies.

Improvement of energy-conversion efficiency from laser to proton beam in a laser-foil interaction

2008 ◽  
Vol 78 (4) ◽  
Author(s):  
Y. Nodera ◽  
S. Kawata ◽  
N. Onuma ◽  
J. Limpouch ◽  
O. Klimo ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Proton Beam ◽  
Conversion Efficiency ◽  
Energy Conversion Efficiency
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