Suppressing the Auger recombination process in quantum dots

A Quantum Dot (QD) is a nanometer-sized semiconductor nanocrystal that has unique optical properties such as the ability to emit light in the range of optical frequencies depending on its size. QDs have already been applied ...

Water as a metal

Under normal conditions, pure water is an almost perfect insulator. Water only develops metallic properties under extreme pressure, such as exists deep inside of large planets. Now, an international collaboration has used ...

Efficiency in photocatalysis found to be site-sensitive

Prof. Huang Weixin and Zhang Qun from University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), together with domestic collaborators, probed into the photocatalytic oxidation of methanol ...

Altering the properties of 2-D materials at the nanometer scale

EPFL scientists have developed a method for changing the physical properties of 2-D materials permanently using a nanometric tip. Their approach, which involves deforming the materials, paves the way to using these materials ...

White graphene exhibits high defect tolerance and elasticity

Because of their unique physical, chemical, electrical and optical properties, two-dimensional (2-D) materials have attracted tremendous attention in the past decades. After revealing the realistic strength and stretchability ...

A highly light-absorbent and tunable material

By layering different two-dimensional materials, physicists at the University of Basel have created a novel structure with the ability to absorb almost all light of a selected wavelength. The achievement relies on a double ...

A theoretical boost to nano-scale devices

Semiconductor companies are struggling to develop devices that are mere nanometers in size, and much of the challenge lies in being able to more accurately describe the underlying physics at that nano-scale. But a new computational ...

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