Search results for optoelectronic devices

Nanophysics Nov 3, 2022

Exploring pressure-gated band-edge states of 2D halide perovskites

In semiconductor heterostructures, reconfiguring the band-edge states and modulating their interplay with charge carriers in a continuous manner have been long-standing challenges.

Optics & Photonics Nov 2, 2022

Unipolar quantum optoelectronic devices: Higher speeds in free-space optical communications in the midinfrared band

Telecommunications have reshaped many aspects of our lives over the past few decades by providing incredibly convenient ways to share and access information. One of the most important enablers for this transformation has ...

Nanophysics Nov 1, 2022

Quantum dots form ordered material

Quantum dots are clusters of some 1,000 atoms which act as one large "super-atom." It is possible to accurately design the electronic properties of these dots just by changing their size. However, to create functional devices, ...

Nanomaterials Oct 27, 2022

Overview of the emerging field of 2D ferroelectric materials with layered van der Waals crystal structures

A UNSW paper published recently in Nature Reviews Materials presents an exciting overview of the emerging field of 2D ferroelectric materials with layered van der Waals crystal structures, a novel class of low-dimensional ...

Optics & Photonics Oct 25, 2022

Carbonized polymer dots enhance stability and flexibility of quasi-2D perovskite photodetector

High-performance photodetectors with great detection capability have been widely deployed in our daily life, such as driverless technology, intraoperative navigated surgery, face recognition, anti-counterfeiting, and so on. ...

Optics & Photonics Oct 24, 2022

Meta-lens offers superior off-axis focus

An ultrathin dielectric meta-lens has been created that improves focusing capabilities but can also be scaled down to a tiny size for integration with photonics equipment.

Nanophysics Oct 5, 2022

Developing strategies for high-quality crystal growth

Transition metal dichalcogenides (TMDCs) are a class of materials with physical properties that make them ideally suited for use in flexible optoelectronic applications, such as light detectors, light-emitting diodes and ...

Nanophysics Oct 3, 2022

Researchers use light to control magnetic fields at nanoscale

In thin, two-dimensional semiconductors, electrons move, spin and synchronize in unusual ways. For researchers, understanding the way these electrons carry out their intricate dances—and learning to manipulate their choreography—not ...

Analytical Chemistry Oct 3, 2022

Optimizing efficient perovskite photovoltaics

Developing low-cost and stable metal electrodes is crucial for mass production of perovskite solar cells (PSCs). As an earth-abundant element, Cu becomes an alternative candidate to replace noble metal electrodes such as ...

Superconductivity Sep 22, 2022

Manufacturing of quantum qubits connected with conventional computer devices

Computers that can make use of the "spooky" properties of quantum mechanics to solve problems faster than current technology may sound alluring, but first they must overcome a massive disadvantage. Scientists from Japan may ...

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