This review reveals mechanisms and modulation strategies of interlayer excitons in van der Waals structures, suggesting their potential for future optoelectronic devices.
Key Points
Interlayer excitons are promising for next-generation excitonic devices, featuring long lifetimes and strong Coulomb binding.
Identification challenges persist due to spectral overlap among interlayer, defect-bound, and momentum-indirect excitons.
Five external modulation methods influence IX properties: electric fields, strain, magnetic fields, twist angles, and optical cavities.
Emerging applications include exciton-based memory and chip-scale photonics, highlighting the technology's versatility.