Search results for dopant

Analytical Chemistry Apr 24, 2024

Scientists develop novel liquid metal alloy system to synthesize diamond under moderate conditions

Did you know that 99% of synthetic diamonds are currently produced using high-pressure and high-temperature (HPHT) methods? A prevailing paradigm is that diamonds can only be grown using liquid metal catalysts in the "gigapascal ...

Condensed Matter Mar 28, 2024

Study unveils a spontaneous toroidal polar topology in the helielectric nematic state

Magnetic and electric dipoles, objects with two oppositely charged ends, have a similar symmetrical structure. One might thus assume that they exhibit similar internal structures and physical states.

Analytical Chemistry Mar 20, 2024

An air-stable single-crystal layered oxide cathode based on multifunctional structural modulation

Sodium-ion batteries (SIBs) are considered a promising energy storage system due to their superior safety properties, low price, and plentiful sodium supplies, while the development of electrode materials plays a critical ...

Nanomaterials Mar 14, 2024

Researchers find new ways to regulate hole transport layer for efficient perovskite solar cells

According to a study published in Nano Energy, a research group led by Prof. Chen Chong from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has increased the photoelectric conversion efficiency ...

Nanomaterials Feb 28, 2024

New, more biocompatible materials for bioelectronic applications

Bioelectronics is a field of research in which biology and electronics converge. In medicine, for example, an external electric current is used to cure or monitor diseases of the nervous system, and also to monitor biomarkers ...

Condensed Matter Feb 15, 2024

Uncovering the physics of how electrons screen against conductivity-killer in organic semiconductors

California's Silicon Valley and Utah's Silicon Slopes are named for the element most associated with semiconductors, the backbone of the computer revolution. Anything computerized or electronic depends on semiconductors, ...

Condensed Matter Feb 9, 2024

New research demonstrates how to study low concentrations of electrons in complex oxide films

Semiconductors in modern electronics rely on small quantities of added impurity elements, called dopants, that alter the ability of the material to conduct electricity. While the role of these dopants is often straightforward, ...

Nanomaterials Feb 6, 2024

Guanine synthesis yields new insights into nitrogen's role in nanocarbon catalysis

Recently, carbon-based catalysts—especially nitrogen-doped nanocarbons—have emerged as sustainable, reliable alternatives to the metal catalysts traditionally used to support chemical reactions.

Analytical Chemistry Jan 23, 2024

As easy as counting to ten: A new rule for catalysts' design

The "ten electron rule" provides guidance for the design of single-atom alloy catalysts for targeted chemical reactions.

Condensed Matter Jan 19, 2024

Study shows how adding impurities to thermoelectric materials impacts their mechanical properties

According to scientists, waste heat, which enters the environment and remains unused, accounts for more than 70% of global energy consumption losses. With the help of thermoelectric materials—special semiconductors—the ...

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