Mapping the Energetic Landscape of Solar Cells

A new spectroscopic method visualizes the energetic landscape inside solar cells based on organic materials

Thinnest Optical Waveguide

With only three layers of atoms the new device is a proof of concept for scaling down to sizes that are orders of magnitude smaller than today’s devices

Steering Electrons with Light

Electrons in transition metals get redistributed within a fraction of an optical oscillation cycle

Weyl Semimetals for Photonic Devices

Circular photogalvanic effect could be used to control electric current by light.

Flat Lens With a Twist

Stacked bifocal metalenses with controllable focal length and intensity ratio

Light for the Nanoworld

Placing light sources in atomically thin material layers with an accuracy of just a few nanometers

Free Photons for Efficient White OLEDs

Integrating special nanostructures into white OLEDs, an external quantum efficiency of up to 76.3% can be achieved

Majorana Photons Identified

Unique photons can travel with different wavefronts and allow better views through brain tissue

Photonic Waveguide Connects Quantum Dots

Quantum dots emit single photons with precisely the same color

Light Increases Magnetic Memory Speeds

New method can potentially reduce energy consumption in magnetic memory devices