Journal ArticleDOI
Thermoelectric and transport properties of β-Ag2Se compounds
Marhoun Ferhat,Jiro Nagao +1 more
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TLDR
In this paper, the Hall coefficient, electrical resistivity, and Seebeck coefficient of n-type specimens of β-Ag2Se, the low temperature polymorph of silver selenide, were measured over the temperature range from 70 to 300 K.Abstract:
The Hall coefficient, electrical resistivity, and Seebeck coefficient of n-type specimens of β-Ag2Se, the low temperature polymorph of silver selenide, were measured over the temperature range from 70 to 300 K. The results showed maxima in both Hall coefficient and the electrical resistivity just below the onset of the intrinsic conduction range. This anomaly was qualitatively explained by the deviation of the Coulomb scattering from the usual assumption of independence due to the degenerate nature of the samples. The estimated energy gap for different samples of about 160 meV seems to confirm the existence of the second low temperature phase β2. This second phase is a probable reason for the relatively high thermoelectric figure of merit observed.read more
Citations
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Journal ArticleDOI
High Performance Thermoelectric Materials: Progress and Their Applications
TL;DR: In this article, the authors focus on major novel strategies to achieve high-performance thermoelectric (TE) materials and their applications, and present a review of these strategies.
Journal ArticleDOI
Single-Crystalline Nanowires of Ag2Se Can Be Synthesized by Templating against Nanowires of Trigonal Se
TL;DR: A template-directed reaction is described, in which single-crystalline nanowires of trigonal Se were quantitatively converted into single- Crystals of Ag2Se by reacting with aqueous AgNO 3 solutions at room temperature.
Journal ArticleDOI
High performance n-type Ag 2 Se film on nylon membrane for flexible thermoelectric power generator
TL;DR: An n-type Ag2Se film on flexible nylon membrane with an ultrahigh power factor and excellent flexibility is reported, presenting a facile method to deliver inorganic nanowire films with high power factors and flexibility.
Journal ArticleDOI
Engineering Solar Cell Absorbers by Exploring the Band Alignment and Defect Disparity: The Case of Cu‐ and Ag‐Based Kesterite Compounds
Zhen Kun Yuan,Shiyou Chen,Hongjun Xiang,Xingao Gong,Aron Walsh,Ji-Sang Park,Ingrid Repins,Su-Huai Wei +7 more
TL;DR: In this article, the authors showed that there is a large disparity between the defects in Cu-and Ag-based kesterite semiconductors, i.e., the CuZn or CuCd acceptor defects have high concentration and are the dominant defects in either Cu2ZnSn(S,Se)4 or Cu2CdSnS4.
Journal ArticleDOI
Some New Developments in the Synthesis, Functionalization, and Utilization of Monodisperse Colloidal Spheres
TL;DR: In this article, the authors provide an overview of some recent developments related to the synthesis and functionalization of monodisperse colloidal spheres, a class of colloidal materials that has found widespread use in applications such as the fabrication of photonic crystals, optical sensing, and drug delivery.
References
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Book
Binary alloy phase diagrams
TL;DR: Binary Alloy Phase Diagrams, Second Edition, Plus Updates, on CD-ROM offers you the same high-quality, reliable data you'll find in the 3-volume print set published by ASM in 1990.
Journal ArticleDOI
Large magnetoresistance in non-magnetic silver chalcogenides
R. Xu,R. Xu,A. Husmann,Thomas Rosenbaum,Marie-Louise Saboungi,J. E. Enderby,Peter B. Littlewood +6 more
TL;DR: In this paper, the authors describe a novel class of magnetoresistive compounds, the silver chalcogenides, and show that slightly altering the stoichiometry can lead to a marked increase in the magnetic response.
Book
Electron Transport Phenomena in Semiconductors
TL;DR: In this article, the first systematic and detailed exposition of the linear theory of the stationary electron transport phenomena in semiconductors is presented, and the main part of the book deals with the three important problems: charge carrier statistics in a semiconductor, classical and quantum theory of electron transport, and all the theoretical results are presented in the form which may be directly used to interpret experimental data.
Journal ArticleDOI
Electrical Properties of β‐Ag2Te and β‐Ag2Se from 4.2° to 300°K
Richard Dalven,Robert J Gill +1 more
TL;DR: In this article, the electrical properties of β•Ag2Te and β'Ag2Se have been extended to 4.2°K and showed no indication of extrinsic carrier freeze-out or impurity banding.
Journal ArticleDOI
Review on structural and dynamical properties of silver chalcogenides
TL;DR: In this paper, the structure factors with which electrons are connected are expressed symmetrically in terms of the structure factor of ions in the long wavelength limit using the fluctuation-dissipation theorem and the Kramers-Kronig relation.