Ring Stain Effect at Room Temperature in Silver Nanoparticles Yields High Electrical Conductivity

Langmuir ◽  
2005 ◽  
Vol 21 (23) ◽  
pp. 10264-10267 ◽  
Author(s):  
Shlomo Magdassi ◽  
Michael Grouchko ◽  
Dana Toker ◽  
Alexander Kamyshny ◽  
Isaac Balberg ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Silver Nanoparticles ◽  
Room Temperature ◽  
High Electrical Conductivity

Facile preparation of highly electrically conductive films of silver nanoparticles finely dispersed in polyisobutylene-b-poly(oxyethylene)-b-polyisobutylene triblock copolymers and graphene oxide hybrid surfactants

RSC Advances ◽  
2015 ◽  
Vol 5 (124) ◽  
pp. 102462-102468 ◽  
Author(s):  
Chih-Wei Chiu ◽  
Gang-Bo Ou
Keyword(s):  
Electrical Conductivity ◽  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Triblock Copolymers ◽  
Film Surface ◽  
High Electrical Conductivity ◽  
Electrically Conductive ◽  
Conductive Films ◽  
Heat Treated ◽  
Facile Preparation

The melted morphologies revealed that the AgNPs possessed mobility, and melted on the film surface, giving a high electrical conductivity of 5.2 × 10−2 Ω sq−1 when heat-treated at 350 °C.

scholarly journals [HMIM][Br9]: a Room-temperature Ionic Liquid Based on a Polybromide Anion

2013 ◽  
Vol 68 (10) ◽  
pp. 1103-1107 ◽  
Author(s):  
Heike Haller ◽  
Michael Hog ◽  
Franziska Scholz ◽  
Harald Scherer ◽  
Ingo Krossing ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Raman Spectroscopy ◽  
Ionic Liquid ◽  
Nmr Spectroscopy ◽  
Single Crystal ◽  
Room Temperature ◽  
High Electrical Conductivity ◽  
Conductivity Measurements ◽  
X Ray Diffraction ◽  
X Ray

[HMIM][Br9] ([HMIM]=1-hexyl-3-methylimidazolium) has been investigated by Raman spectroscopy, single-crystal X-ray diffraction and NMR spectroscopy. Conductivity measurements show a high electrical conductivity like other polybromides.

Where Should We Look For High Zt Materials: Suggestions From Theory.

2000 ◽  
Vol 626 ◽  
Author(s):  
M. Fornari ◽  
D. J. Singh ◽  
I. I. Mazin ◽  
J. L. Feldman
Keyword(s):  
Thermal Conductivity ◽  
Electrical Conductivity ◽  
First Principles ◽  
Room Temperature ◽  
First Principles Calculations ◽  
High Electrical Conductivity ◽  
Bulk Materials ◽  
Low Thermal Conductivity ◽  
Computational Exploration ◽  
Single Material

ABSTRACTThe key challenges in discovering new high ZT thermoelectrics are understanding how the nearly contradictory requirements of high electrical conductivity, high thermopower and low thermal conductivity can be achieved in a single material and based on this identifying suitable compounds. First principles calculations provide a material specific microscopic window into the relevant properties and their origins. We illustrate the utility of the approach by presenting specific examples of compounds belonging to the class of skutterudites that are or are not good thermoelectrics along with the microscopic reasons. Based on our computational exploration we make a suggestion for achieving higher values of ZT at room temperature in bulk materials, namely n-type La(Ru,Rh)4Sb12 with high La-filling.

COPPER ALLOY No. C80100

Alloy Digest ◽  
1987 ◽  
Vol 36 (2) ◽  
Keyword(s):  
Thermal Conductivity ◽  
Electrical Conductivity ◽  
Corrosion Resistance ◽  
Copper Alloy ◽  
Room Temperature ◽  
Heat Treating ◽  
High Electrical Conductivity ◽  
Good Resistance ◽  
Corrosion And Oxidation ◽  
Room Temperature Strength

Abstract Copper No. C80100 is a casting copper with high electrical conductivity (100% IACS). It has low room-temperature strength and hardness and medium-to-good ductility. It has excellent thermal conductivity and good resistance to corrosion, these characteristics make it highly suitable for many applications requiring good electrical and or thermal conductivity and resistance to corrosion and oxidation. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, joining, and surface treatment. Filing Code: Cu-521. Producer or source: Copper alloy foundries.

Conducting neutral gold bisdithiolene complex [Au(dspdt)2]˙

2020 ◽  
Vol 49 (39) ◽  
pp. 13737-13743
Author(s):  
Mariana F. G. Velho ◽  
Rafaela A. L. Silva ◽  
Graça Brotas ◽  
Elsa B. Lopes ◽  
Isabel C. Santos ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Electrical Conductivity ◽  
Room Temperature ◽  
High Electrical Conductivity

A gold bisdithiolene complex with a unique crystal structure displays high electrical conductivity at room temperature.

Well-Defined Blackberry-Like Polypyrrole Microspheres via Chemical Oxidative Polymerization in the Presence of Functional Floating Bead as In Situ Dopant

2014 ◽  
Vol 904 ◽  
pp. 159-163 ◽  
Author(s):  
Jia Ping Lao ◽  
Chao Yang ◽  
Hao Dao Mo ◽  
Yu Ping Li ◽  
Li Min Zang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Electrical Conductivity ◽  
Sulfonic Acid ◽  
Room Temperature ◽  
Oxidative Polymerization ◽  
High Electrical Conductivity ◽  
Chemical Oxidative Polymerization ◽  
Inorganic Substrate ◽  
Thermal Stability Of

Functional floating bead (F-FB), prepared by anchoring the organic sulfonic acid on the surface of the blackberry-like structural FB, was used as both the inorganic substrate and the in situ dopant for the in situ chemical oxidative polymerization of pyrrole to obtain the plypyrrole/functional floating bead (PPy/F-FB) nanocomposite material. The composites possess high electrical conductivity at room temperature. Thermogravimetric analysis shows that the thermal stability of PPy/F-FB composites was enhanced and these can be attributed to the retardation effect of sulfonic acid-functionalized FB as barriers for the degradation of PPy. The morphology of PPy/FB composites showed the well-defined blackberry-like morphology.

High Electrical Conductivity in Organic Single-Component Systems Based on 2,5-Dimethylthio-TCNQ

1993 ◽  
Vol 328 ◽  
Author(s):  
J. S. Zambounis ◽  
J. Mizuguchi ◽  
H. Hediger ◽  
J. Pfeiffer ◽  
B. Schmidhalter ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Electrical Properties ◽  
Room Temperature ◽  
Single Component ◽  
Charge Carriers ◽  
Optical And Electrical Properties ◽  
High Electrical Conductivity ◽  
Component System ◽  
Component Systems ◽  
Neighboring Molecule

ABSTRACT2,5-dimethylthio-TCNQ has been newly synthesized, and its optical and electrical properties have been investigated in evaporated films. A high electrical conductivity of σ=2× 10−5 Scm−l has been measured at room temperature. The present single-component system is found to contain 2×1017 spins/cm3. The charge carriers are presumably due to incorporated impurities which give the ESR signals. Carrier hopping is considerably facilitated by close intermolecular S-N contacts between the S atom of the -SCH3 group of one molecule and the N atom of -C≡N group of the neighboring Molecule.

scholarly journals ELECTRIC CONDUCTIVITY AT ROOM TEMPERATURE IN LINATANBO SYNTHESIZED AT A HIGH PRESSURE

2020 ◽  
pp. 61-72
Author(s):  
Вадим Викторович Ефремов ◽  
Михаил Николаевич Палатников ◽  
Ольга Борисовна Щербина
Keyword(s):  
Solid Solution ◽  
Electrical Conductivity ◽  
Dielectric Constant ◽  
High Pressure ◽  
Room Temperature ◽  
Activation Enthalpy ◽  
Relaxation Times ◽  
Charge Carriers ◽  
High Electrical Conductivity ◽  
High Pressure And Temperature

Методом импеданс спектроскопии в области температур 290 - 460 К исследован сегнетоэлектрический твердый раствор LiNaTaNbO со структурой перовскита, синтезированный в условиях высокого давления и температуры. Определены значения статических удельных проводимостей, наиболее вероятные времена релаксации в зависимости от температуры, энтальпии активации носителей заряда и реальная часть диэлектрической проницаемости. Обнаружено, что при комнатной температуре LiNaTaNbO обладает высокой электропроводностью, близкой к суперионной. Обсуждаются возможные механизмы обнаруженных явлений. A ferroelectric solid solution LiNaTaNbO with a perovskite structure, synthesized under the high pressure and temperature conditions, has been studied by impedance spectroscopy in the temperature range 290 - 460 K. The values of static conductivity, the most probable relaxation times as functions of temperature, the activation enthalpy of charge carriers, and the real part of the dielectric constant have been determined. It was found that at room temperature LiNaTaNbO has a high electrical conductivity, close to the superionic one. Possible mechanisms of the discovered phenomenon are discussed.

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