Physics

Microstrip

Electron

Crystallography

Ferromagnetism

Optics

Perovskite (structure)

Circular polarization

Halide

Spin polarization

Light-emitting diode

Inorganic chemistry

Chemistry

Materials science

Magnetism

Condensed matter physics

Spin (aerodynamics)

Quantum mechanics

Diode

Optoelectronics

Thermodynamics

Science

Spin injection sans magnetism Light-emitting diodes (LEDs) that emit circularly polarized light (spin-LEDs) have potential applications in in three-dimensional displays, bioencoding, and tomography. The requisite spin polarization of the charge carriers is usually achieved with ferromagnetic contacts and applied magnetic fields, but Kim et al. report on a room-temperature spin-LED that relies instead on a chiral-induced spin selectivity organic layer. This layer selectively injected spin-polarized holes into metal halide perovskite nanocrystals, where they radiatively recombined with unpolarized electrons with an efficiency of 2.6%. Science , this issue p. 1129

Chiral-induced spin selectivity enables a room-temperature spin light-emitting diode