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PHYSICS
Condensed Matter Physics
Exciton
Excitons enable energy transport in materials without carrying electric charge, key to optoelectronics
24 Jan 2026
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What is the primary reason excitons are electrically neutral despite involving charged particles?
Because excitons do not involve any charged particles at all.
Because the electron and the electron hole have opposite charges that cancel each other out.
Because the electron and hole are too far apart to interact electrically.
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