Results 61 to 70 of about 20,861 (259)

Effect of Sb deficiency on the thermoelectric properties of Zn4Sb3

, 2015
We have investigated the effect of Sb-deficiency on the thermoelectric figure of merit (zT) of Zn4Sb3 prepared by solid state reaction route. At high temperatures, the Seebeck coefficient (S) and electrical conductivity ({\sigma}) increase with increase ...
Sanchela, Anup V., Thakur, Ajay D., Tomy, C. V.   +2 more
core   +2 more sources

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Impurity Substitution Enhances Thermoelectric Figure of Merit in Zigzag Graphene Nanoribbons

Advances in Condensed Matter Physics, 2021
The thermoelectric properties of zigzag graphene nanoribbons (ZGNRs) are sensitive to chemical modification. In this study, we employed density functional theory (DFT) combined with the nonequilibrium green’s function (NEGF) formalism to investigate the ...
Saeideh Ramezani Akbarabadi, Mojtaba Madadi Asl   +1 more
doaj   +1 more source

Thermoelectric degrees of freedom determining thermoelectric efficiency

iScience, 2021
Summary: For over half a century, the development of thermoelectric materials has based on the dimensionless figure of merit zT, assuming that the efficiency is mainly determined by this single parameter.
Byungki Ryu, Jaywan Chung, SuDong Park
doaj   +1 more source

Heat to Electricity Conversion by a Graphene Stripe with Heavy Chiral Fermions

, 2013
A conversion of thermal energy into electricity is considered in the electrically polarized graphene stripes with zigzag edges where the heavy chiral fermion (HCF) states are formed.
A.F. Young, A.I. Persson, D. Miller, D. Soriano, E. Pop, F. Xia, H. Xu, J.H. Christenson, J.P. Small, K.I. Bolotin, L. Brey, L. Brey, L.F. Zagonel, M.C. Lemme, S.E. Shafranjuk, Serhii E. Shafranjuk, T. Ando, Y.-M. Lin   +17 more
core   +1 more source

The upper limit of thermoelectric figure of merit: importance of electronic thermoelectric efficiency

Journal of Physics D: Applied Physics, 2012
Abstract To improve thermoelectric (TE) efficiency, the physical phenomenon of TE effect is revisited. The important TE figure of merit (FOM) is expressed in terms of powers, and it is mapped by two fundamental quantities. One is the electronic TE efficiency, which is purely determined by a probability distribution function of electron ...
Li, Jing, Yeung, Tin Cheung Au, Kam, Chan Hin   +2 more
openaire   +2 more sources

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

Synthesis and high temperature thermoelectric properties of Yb0.25Co4Sb12-(Ag2Te)x(Sb2Te3)1-x nanocomposites

Frontiers in Chemistry, 2015
Nanocomposites are becoming a new paradigm in thermoelectric study: by incorporating nanophase(s) into a bulk matrix, a nanocomposite often exhibits unusual thermoelectric properties beyond its constituent phases.
Jin eZheng, Jiangying ePeng, Zhexin eZheng, Menghan eZhou, Emily eThompson, Junyou eYang, Wanli eXiao   +6 more
doaj   +1 more source

First-principles calculation of the thermoelectric figure of merit for [2,2]paracyclophane-based single-molecule junctions

, 2015
Here we present a theoretical study of the thermoelectric transport through {[}2,2{]}para\-cyclo\-phane-based single-molecule junctions. Combining electronic and vibrational structures, obtained from density functional theory (DFT), with nonequilibrium ...
Asai, Yoshihiro, Bürkle, Marius, Hellmuth, Thomas J., Pauly, Fabian   +3 more
core   +1 more source

Roll‐to‐Roll Manufacturing of Flexible Thermoelectric Semiconductors Using Low‐Level Direct‐Current Sputtering

Advanced Materials Technologies, EarlyView.
Roll‐to‐roll direct‐current sputtering enables room‐temperature manufacture of flexible bismuth telluride thermoelectric films. By identifying a low‐power deposition window that suppresses charge‐induced arcing, this work links sputtering conditions to film structure, charge transport, and thermoelectric performance, achieving a room‐temperature figure
Xudong Tao, John O'Sullivan, Kening Wan, Emiliano Bilotti, Ruy Sebastian Bonilla, Hazel E. Assender   +5 more
wiley   +1 more source