Search results for optoelectronic devices

Condensed Matter Feb 14, 2023

Floquet band engineering in black phosphorus

Physicists have been trying to identify reliable strategies to manipulate quantum states in solid-state materials, cold atoms and other systems, as this could inform the development of new technologies. One of these strategies ...

Optics & Photonics Feb 13, 2023

Quantum dots with finely-tuned spherical defects could enhance nonlinear optics

Quantum dots are semiconductor particles measuring just a few nanometers across, which are now widely studied for their intriguing electrical and optical properties. Through new research published in The European Physical ...

Condensed Matter Feb 10, 2023

New study opens the door to ultrafast 2D devices that use nonequilibrium exciton superdiffusion

Bound electron-hole pairs, or excitons, are the workhorses in layered transition metal dichalcogenide semiconductors. Like the negative and positive charge carriers from which it forms, the exciton exhibits great mobility ...

Quantum Physics Feb 7, 2023

Microscopy images could lead to new ways to control excitons for quantum computing

Excitons are drawing attention as possible quantum bits (qubits) in tomorrow's quantum computers and are central to optoelectronics and energy-harvesting processes. However, these charge-neutral quasiparticles, which exist ...

Polymers Feb 6, 2023

Polymers with a metal backbone

Until now, it has been clear: you can have a metal or a plastic, but not both in one. However, things don't have to stay that way. In the journal Angewandte Chemie, a Chinese research team has now reported a polymer with ...

Nanophysics Feb 3, 2023

Two/quasi-two-dimensional perovskite-based heterostructures: Construction, properties and applications

Van der Waals heterostructures integrated from various two-dimensional (2D) layered materials provide fundamental building blocks for optoelectronic devices with novel functionalities, such as photovoltaic solar cells, light ...

Optics & Photonics Jan 26, 2023

Team uses quantum sensors to reveal how Weyl photocurrents flow

Quantum sensors can be used to reveal a surprising new mechanism for converting light into electricity in Weyl semimetals, Boston College (BC) Assistant Professor of Physics Brian Zhou and colleagues report in the journal ...

Optics & Photonics Jan 10, 2023

Investigating the laser-induced periodic surface structure (LIPSS) of silicon

The electronic and optical devices that we use on a daily basis, such as mobile phones, LEDs and solar cells use transistors and other parts that are consistently getting smaller and more compact. With an ever-growing need ...

Optics & Photonics Jan 5, 2023

Metal halide perovskites for next-generation optoelectronics: Progress and prospects

Metal halide perovskites (MHPs) have been emerging as the rising star in the field of optoelectronics during the past decade. The state-of-the-art optoelectronic technologies based on MHPs, such as perovskite solar cells ...

Optics & Photonics Dec 16, 2022

A sensitization strategy achieves hyperfluorescence

Organic light-emitting diodes (OLEDs) play an important role in new-generation flat-panel displays. For ultra-high-definition displays presented in International Telecommunication Union (ITU) Recommendation BT 2020 standard, ...

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