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Search results for van der Waals materials

Nanophysics May 25, 2022

Electronic self-passivation of single vacancy in black phosphorus

NUS scientists discovered that a two-dimensional (2D) semiconducting material, known as black phosphorus (BP), exhibits an electronic self-passivation phenomenon by re-arranging its vacancy defects. This may potentially enhance ...

Quantum Âé¶¹ÒùÔºics May 20, 2022

Unique quantum material could enable ultra-powerful, compact computers

Information in computers is transmitted through semiconductors by the movement of electrons and stored in the direction of the electron spin in magnetic materials. To shrink devices while improving their performance—a goal ...

Optics & Photonics May 13, 2022

On-chip photodetection: Two-dimensional material heterojunctions

Photonic integrated circuits (PICs) use photons as information carriers and are expected to solve the bottleneck problems of microelectronic chips in terms of speed, power consumption and integration density with their advantages ...

Analytical Chemistry May 11, 2022

Non-invasive imaging of atomic arrangement at the sub-angstrom scale in 2-D hybrid perovskites

Materials scientists aim to identify the atomic arrangement of 2D Ruddlesden-Popper hybrid perovskites (RPP) using non-invasive imaging; however, the process is challenging due to the insulating nature and softness of the ...

Nanophysics May 6, 2022

A new age of 2.5D materials

Scientists are exploring new ways to artificially stack two-dimensional (2D) materials, introducing so-called 2.5D materials with unique physical properties. Researchers in Japan reviewed the latest advances and applications ...

Nanomaterials Apr 28, 2022

Beyond van der Waals: The next generation of covalent 2D-2D heterostructures

A team of scientists have "velcroed" 2D structures of MoS2 and graphene using a covalent connection for the first time. The 2D-2D structures were used to build robust field effect transistors with controlled electronic communication, ...

Superconductivity Apr 27, 2022

Discovery of the one-way superconductor, thought to be impossible

Associate professor Mazhar Ali and his research group at TU Delft have discovered one-way superconductivity without magnetic fields, something that was thought to be impossible ever since its discovery in 1911—up until ...

Materials Science Apr 20, 2022

'Dative epitaxy': A new way to stack crystal films

Scientists have grown thin films of two different crystalline materials on top of each other using an innovative technique called "dative epitaxy." The researchers discovered the method by surprise.

Analytical Chemistry Apr 14, 2022

Predicting the most stable boron nitride structure with quantum simulations

Boron nitride (BN) is a versatile material with applications in a variety of engineering and scientific fields. This is largely due to an interesting property of BN called "polymorphism," characterized by the ability to crystallize ...

Nanophysics Apr 11, 2022

Magnetic property in an antiferromagnetic semiconductor enables light manipulation on the nanoscale

A major research challenge in the field of nanotechnology is finding efficient ways to control light, an ability essential for high-resolution imaging, biosensors and cell phones. Because light is an electromagnetic wave ...

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