Unbroken: New soft electronics don't break, even when punctured
Want a smartphone that stretches, takes damage, and still doesn't miss a call?
Jun 26, 2021
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Electronics & Semiconductors
Page 6 - News tagged with electrical conductivity
Engineering
Fabrication of printed high-performance thin-film transistors operable at one volt
NIMS has developed low-temperature-catalyzed, solution-processed SiO2 (LCSS), which subsequently enabled printing of high-performance thin-film transistors (TFTs) and three-dimensional circuits connecting various elements. ...
Jun 23, 2021
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Engineering
Smart fabrics and self-powered sensing
Smart fabrics and wearable electronics can be developed using highly conductive and stretchy fibers. Most of these fiber conductors are, however, strain sensitive with limited conductance on stretching. As a result, a new ...
Engineering
Development of a novel thermoelectric material with record-high conversion efficiency
NIMS has succeeded in enhancing the thermoelectric performance of an n-type Mg3Sb2-based material by minutely doping with copper. NIMS and AIST then constructed a module by combining this material with a high-performance ...
Jun 7, 2021
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Energy & Green Tech
Scientists develop transparent electrode that boosts solar cell efficiency
Developing new ultrathin metal electrodes has allowed researchers to create semitransparent perovskite solar cells that are highly efficient and can be coupled with traditional silicon cells to greatly boost the performance ...
May 28, 2021
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Electronics & Semiconductors
Organic semiconductors that could help generate electricity from industrial and residential waste heat
Electronic organic materials offer promise to support alternative and green energy sources to meet escalating global energy demands and strict environmental regulations. A KAUST-led team has now developed electron-transporting, ...
Mar 17, 2021
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112
Electronics & Semiconductors
Researchers develop unique Ag-hydrogel composite for soft bioelectronics
In the field of robotics, metals offer advantages like strength, durability, and electrical conductivity. But, they are heavy and rigid—properties that are undesirable in soft and flexible systems for wearable computing ...
Mar 11, 2021
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57
Electronics & Semiconductors
A design to improve the resilience and electrical performance thin metal film based electrodes
Flexible electrodes, electronic components that conduct electricity, are of key importance for the development of numerous wearable technologies, including smartwatches, fitness trackers and health monitoring devices. Ideally, ...
Electronics & Semiconductors
A cool advance in thermoelectric conversion
More than two-thirds of the energy used worldwide is ultimately ejected as "waste heat." Within that reservoir of discarded energy lies a great and largely untapped opportunity, claim scientists in MIT's Department of Nuclear ...
Dec 14, 2020
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Electronics & Semiconductors
Practical and versatile micro-patterning for organic electronics and photonics
Scientists have managed to draw at high resolution and speed, local patterns in organic semiconductor films used in optoelectronic and photonic applications. The new method enables the patterning of material characteristics ...
Jul 17, 2020
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183
Electrical conductivity
Electrical conductivity or specific conductance is a measure of a material's ability to conduct an electric current. When an electrical potential difference is placed across a conductor, its movable charges flow, giving rise to an electric current. The conductivity σ is defined as the ratio of the current density to the electric field strength :
It is also possible to have materials in which the conductivity is anisotropic, in which case σ is a 3×3 matrix (or more technically a rank-2 tensor) which is generally symmetric.
Conductivity is the reciprocal (inverse) of electrical resistivity, ρ, and has the SI units of siemens per metre (S·m-1):
Electrical conductivity is commonly represented by the Greek letter σ, but κ (esp. in electrical engineering science) or γ are also occasionally used.
An EC meter is normally used to measure conductivity in a solution.
This text uses material from Wikipedia, licensed under CC BY-SA
