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<p>Perovskite quantum dot–MOF (QD@MOF) heterostructures represent a versatile class of hybrid nanomaterials that integrate the defect-tolerant optoelectronic properties of perovskite QDs with the chemically tunable architectures of metal–organic frameworks (MOFs). This review highlights the chemical strategies underlying their design, including ligand functionalization, linker selection, and pore engineering, which collectively govern exciton confinement, surface passivation, and local dielectric environments. We systematically summarize recent advances in synthetic methodologies, host–guest interactions, and interfacial chemistry that modulate nonlinear optical responses, such as two-photon absorption, multiphoton-excited fluorescence, and third-order susceptibility. Special attention is given to the relationship between chemical structure and photophysical behavior, illustrating how targeted modifications of MOF linkers and QD surfaces enhance exciton lifetime, suppress nonradiative decay, and amplify multiphoton activity. Finally, we discuss emerging opportunities in ultrafast photonics, multiphoton imaging, and optoelectronic devices, while addressing the challenges of stability, reproducibility, and scalable fabrication. By integrating chemical design principles with photophysical optimization, QD@MOF heterostructures offer a promising platform for next-generation nonlinear photonic applications.</p>

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Chemical engineering of perovskite quantum dot–MOF heterostructures for tunable exciton dynamics and enhanced nonlinear photonics

  • 期刊论文

  • 发表日期：

    2026年3月28日

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  • Mohamed Abu Shuheil,
  • Ahmed Aldulaimi,
  • Subhashree Ray,
  • Talal Aziz Qassem,
  • Gunjan Garg,
  • Renu Sharma,
  • Bekzod. Madaminov,
  • Sabokhat Sadikova,
  • Shaimaa Messa

摘要

Perovskite quantum dot–MOF (QD@MOF) heterostructures represent a versatile class of hybrid nanomaterials that integrate the defect-tolerant optoelectronic properties of perovskite QDs with the chemically tunable architectures of metal–organic frameworks (MOFs). This review highlights the chemical strategies underlying their design, including ligand functionalization, linker selection, and pore engineering, which collectively govern exciton confinement, surface passivation, and local dielectric environments. We systematically summarize recent advances in synthetic methodologies, host–guest interactions, and interfacial chemistry that modulate nonlinear optical responses, such as two-photon absorption, multiphoton-excited fluorescence, and third-order susceptibility. Special attention is given to the relationship between chemical structure and photophysical behavior, illustrating how targeted modifications of MOF linkers and QD surfaces enhance exciton lifetime, suppress nonradiative decay, and amplify multiphoton activity. Finally, we discuss emerging opportunities in ultrafast photonics, multiphoton imaging, and optoelectronic devices, while addressing the challenges of stability, reproducibility, and scalable fabrication. By integrating chemical design principles with photophysical optimization, QD@MOF heterostructures offer a promising platform for next-generation nonlinear photonic applications.