4 years ago
New quasiparticle unveiled in room temperature semiconductors
The optical properties of semiconductors are governed by the so-called “excitons”, which are bound pairs of negative electrons and positive holes. Excitons are important because they transport energy (with no net charge) across materials and thus they play a crucial role in a number of optoelectronic devices. The ability to control the excitonic properties of semiconductors (by tuning parameters such as temperature, pressure, charge density, electric and magnetic fields) is key to broadening the range and diversity of applications.
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