{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T16:34:29Z","timestamp":1788366869044,"version":"build-2803163510"},"reference-count":69,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T00:00:00Z","timestamp":1773619200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T00:00:00Z","timestamp":1773619200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Nanophotonics"],"published-print":{"date-parts":[[2026,3,27]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    We implement a hybrid scheme that combines time\u2010dependent density functional theory (TDDFT) with quantum hydrodynamic theory (QHT). Using TDDFT, we capture the transition charge density of a\n                    <jats:italic>p<\/jats:italic>\n                    \u2010nitroaniline (PNA) molecule, which translates into a realistic field distribution used to excite the QHT\u2010treated plasmonic systems. This facilitates the investigation of plasmonic quantum effects and the emitter's spatial extent in plasmon\u2010emitter interactions. As a result, we compare the emission properties of the PNA and a point dipole (PD) in plasmonic dimer gaps. Significant discrepancies are observed in both the oscillator strengths of the emission rates and the spectral positions of the prominent modes in the PNA\u2010 and PD\u2010based models when the dimer gap size is smaller than approximately 3.2\u00a0nm. These discrepancies are attributable to the spatial extent of the PNA molecule. The gap at which quantum\u2010tunneling\u2010induced emission quenching begins is observed to be three times larger in the PNA\u2010based system than in the PD\u2010based one. We study these phenomena by progressively introducing the quantum effects, starting from the local response approximation, moving to the nonlocal Thomas\u2013Fermi hydrodynamic theory, and ultimately extending to the full QHT.\n                  <\/jats:p>","DOI":"10.1002\/nap2.70044","type":"journal-article","created":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T14:34:55Z","timestamp":1774276495000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Plasmonic\u2010Quantum and Emitter's Finite\u2010Size Effects in Plasmon\u2010Emitter Coupling: A QHT\u2013DFT Hybrid Approach"],"prefix":"10.1002","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2716-502X","authenticated-orcid":false,"given":"Tadele Orbula","family":"Otomalo","sequence":"first","affiliation":[{"name":"Center for Biomolecular Nanotechnologies Istituto Italiano di Tecnologia  Arnesano Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7728-9522","authenticated-orcid":false,"given":"Gabriel","family":"Gil","sequence":"additional","affiliation":[{"name":"Universit\u00e0 del Piemonte Orientale  Alessandria Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4633-1898","authenticated-orcid":false,"given":"Gonzalo","family":"\u00c1lvarez\u2010P\u00e9rez","sequence":"additional","affiliation":[{"name":"Center for Biomolecular Nanotechnologies Istituto Italiano di Tecnologia  Arnesano Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8284-9494","authenticated-orcid":false,"given":"Huatian","family":"Hu","sequence":"additional","affiliation":[{"name":"Center for Biomolecular Nanotechnologies Istituto Italiano di Tecnologia  Arnesano Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1489-7758","authenticated-orcid":false,"given":"Ferruccio","family":"Pisanello","sequence":"additional","affiliation":[{"name":"Center for Biomolecular Nanotechnologies Istituto Italiano di Tecnologia  Arnesano Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6707-108X","authenticated-orcid":false,"given":"Stefano","family":"Corni","sequence":"additional","affiliation":[{"name":"Universit\u00e0 degli Studi di Padova  Padova Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0940-8830","authenticated-orcid":false,"given":"Fabio Della","family":"Sala","sequence":"additional","affiliation":[{"name":"Center for Biomolecular Nanotechnologies Istituto Italiano di Tecnologia  Arnesano Italy"},{"name":"Institute for Microelectronics and Microsystems (CNR\u2010IMM)  Lecce Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3349-8389","authenticated-orcid":false,"given":"Cristian","family":"Cirac\u00ec","sequence":"additional","affiliation":[{"name":"Center for Biomolecular Nanotechnologies Istituto Italiano di Tecnologia  Arnesano Italy"},{"name":"Neurophos Inc.  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