Take a lattice—a flat section of a grid of uniform cells, like a window screen or a honeycomb—and lay another, similar lattice above it. But instead of trying to line up the edges or the cells of both lattices, give the ...
Condensed Matter
Jun 7, 2023
0
135
Atomically thin semiconductors such as molybdenum disulfide and tungsten disulfide are promising materials for nanoscale photonic devices. These approximately 2D semiconductors support so-called excitons, which are bound ...
Nanophysics
Jun 14, 2022
0
25
Scientists at the University of Groningen used a silver sawtooth nanoslit array to produce valley-coherent photoluminescence in two-dimensional tungsten disulfide flakes at room temperature. Until now, this could only be ...
Optics & Photonics
Feb 7, 2020
0
138
As reported in Nature Physics, a Berkeley Lab-led team of physicists and materials scientists was the first to unambiguously observe and document the unique optical phenomena that occur in certain types of synthetic materials ...
Condensed Matter
Oct 10, 2019
0
9
Physicists have discovered a novel kind of nanotube that generates current in the presence of light. Devices such as optical sensors and infrared imaging chips are likely applications, which could be useful in fields such ...
Nanomaterials
Jun 19, 2019
0
39
A team of researchers led by the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) has developed a simple method that could turn ordinary semiconducting materials into quantum machines—superthin ...
Nanophysics
Mar 7, 2019
0
810
A simple and non-destructive fabrication technique could aid the manufacture of more energy efficient two-dimensional (2-D) films needed to transform the electronics industry.
Nanomaterials
Nov 30, 2018
0
12
By getting in the way, fluorine atoms help a two-dimensional material transform from a semiconductor to a metal in a way that could be highly useful for electronics and other applications.
Materials Science
Oct 16, 2018
0
102
When light of specific frequency hits a semiconductor crystal, it is absorbed and produces excitation, a state of higher energy. In solar cells, this energy is converted into electricity. In two-dimensional crystals, which ...
Nanophysics
May 4, 2018
0
11
Researchers at Purdue University have developed new heterostructures that could make optoelectrical devices, such as solar panels and sensors, more efficient.
Nanomaterials
Feb 23, 2018
0
9
