{"paper":{"title":"Room-temperature quantum emission from $\\mathrm{Cu_{Zn}}$-$\\mathrm{V_{S}}$ defects in ZnS:Cu colloidal nanocrystals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Cherie R. Kagan, Gary Chen, Jonah Ng, Lee C. Bassett, Sarah M. Thompson, Yossef E. Panfil","submitted_at":"2025-01-21T01:32:02Z","abstract_excerpt":"We report room-temperature observations of $\\mathrm{Cu_{Zn}}$-$\\mathrm{V_{S}}$ quantum emitters in individual ZnS:Cu nanocrystals (NCs). Using time-gated imaging, we isolate the distinct, $\\sim$3-$\\mu$s-long, red photoluminescence (PL) emission of $\\mathrm{Cu_{Zn}}$-$\\mathrm{V_{S}}$ defects, enabling their precise identification and statistical characterization. The emitters exhibit distinct blinking and photon antibunching, consistent with individual NCs containing two to four $\\mathrm{Cu_{Zn}}$-$\\mathrm{V_{S}}$ defects. The quantum emitters' PL spectra show a pronounced blue shift compared t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.11812","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2501.11812/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}