Single-Emitter Spectra from an Ensemble
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866912897521680384 |
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| author | Horowitz, Jonah R. Tye, Oliver J. Nix, Oliver M. Tan, Shaun Chang, Hogeun Min, Ji Hyun Kim, Taehyung Bawendi, Moungi G. |
| author_facet | Horowitz, Jonah R. Tye, Oliver J. Nix, Oliver M. Tan, Shaun Chang, Hogeun Min, Ji Hyun Kim, Taehyung Bawendi, Moungi G. |
| contents | The heterogeneity in nanoscale emitters hinders efforts to understand their basic photophysics and limits their use in practical applications. Existing methods have difficulty accurately characterizing single-emitter spectra and optical heterogeneity on a statistical scale. Here, we introduce SPICEE (SPectrally Imbalanced Correlations from Ensemble Emission), a spectrally filtered photon-correlation technique that recovers single-particle emission lineshapes from an ensemble sample. Analytical derivations, numerical modeling, and experiments on a solution ensemble of emitters validate the technique. We apply SPICEE to blue-emitting ZnSeTe semiconductor nanocrystals relevant to display applications and find that the low color purity in the ensemble spectrum is primarily caused by a small subpopulation of nanocrystals with a distinct emission mechanism. This work demonstrates that SPICEE is a powerful high-throughput tool for accurately characterizing the single-emitter properties of nanoscale systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_02757 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Single-Emitter Spectra from an Ensemble Horowitz, Jonah R. Tye, Oliver J. Nix, Oliver M. Tan, Shaun Chang, Hogeun Min, Ji Hyun Kim, Taehyung Bawendi, Moungi G. Mesoscale and Nanoscale Physics Materials Science Optics The heterogeneity in nanoscale emitters hinders efforts to understand their basic photophysics and limits their use in practical applications. Existing methods have difficulty accurately characterizing single-emitter spectra and optical heterogeneity on a statistical scale. Here, we introduce SPICEE (SPectrally Imbalanced Correlations from Ensemble Emission), a spectrally filtered photon-correlation technique that recovers single-particle emission lineshapes from an ensemble sample. Analytical derivations, numerical modeling, and experiments on a solution ensemble of emitters validate the technique. We apply SPICEE to blue-emitting ZnSeTe semiconductor nanocrystals relevant to display applications and find that the low color purity in the ensemble spectrum is primarily caused by a small subpopulation of nanocrystals with a distinct emission mechanism. This work demonstrates that SPICEE is a powerful high-throughput tool for accurately characterizing the single-emitter properties of nanoscale systems. |
| title | Single-Emitter Spectra from an Ensemble |
| topic | Mesoscale and Nanoscale Physics Materials Science Optics |
| url | https://arxiv.org/abs/2602.02757 |