{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T06:51:35Z","timestamp":1792133495521,"version":"4.4.0"},"reference-count":55,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T00:00:00Z","timestamp":1792022400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T00:00:00Z","timestamp":1792022400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["RS\u20102024\u201000350882"],"award-info":[{"award-number":["RS\u20102024\u201000350882"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["RS\u20102020\u2010NR049537"],"award-info":[{"award-number":["RS\u20102020\u2010NR049537"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Plasmonic photothermal heating enables localized energy deposition in nanoscopic volumes, yet harnessing this capability to reach the extreme temperatures required for phase engineering of inorganic solids has remained an outstanding challenge. Here we report two central findings. First, focused 785\u00a0nm continuous\u2010wave laser irradiation of gold nanorod\u2013TiO\n                    <jats:sub>2<\/jats:sub>\n                    core\u2013shell nanoparticles (AuNR@TiO\n                    <jats:sub>2<\/jats:sub>\n                    ) drives amorphous TiO\n                    <jats:sub>2<\/jats:sub>\n                    nanoshells through the complete amorphous \u2192 anatase \u2192 rutile phase sequence within one second. Achieving such extreme local temperatures through plasmonic photothermal heating is exceptional. The transformations are unambiguously confirmed by in situ Raman spectroscopy and ex situ selected\u2010area electron diffraction. Wavelength\u2010selective crystallization reveals that plasmonic absorption of AuNR cores leads to the phase transition. Second, nanoparticle assembly geometry is a decisive design parameter: isolated particles on silicon nitride membrane grids transform predominantly to anatase, whereas dense multilayer assemblies on glass substrates produce rutile under identical conditions. Heat\u2010transfer simulations reveal that overlapping thermal fields in closely packed assemblies elevate local temperatures far beyond those achievable by single\u2010particle heating\u2014a collective thermal accumulation effect that determines the final crystalline phase. These findings establish plasmonic nanoheating as a viable route for spatially selective phase engineering of oxide nanomaterials and identify nanoparticle assembly as a tunable handle for controlling nanoscale crystallinity.\n                  <\/jats:p>","DOI":"10.1002\/smll.76316","type":"journal-article","created":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T06:40:11Z","timestamp":1792132811000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Plasmon\u2010Driven Phase Engineering of TiO\n                    <sub>2<\/sub>\n                    Nanoshells via Collective Thermal Accumulation in Plasmonic Core\u2013Shell Nanoparticle Assemblies"],"prefix":"10.1002","author":[{"given":"Soeun","family":"Ryu","sequence":"first","affiliation":[{"name":"Department of Chemistry Chung\u2010Ang University  Seoul South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5705-4569","authenticated-orcid":false,"given":"Sangwoon","family":"Yoon","sequence":"additional","affiliation":[{"name":"Department of Chemistry Chung\u2010Ang University  Seoul South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,10,15]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.8b00738"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1021\/cr1002547"},{"key":"e_1_2_8_4_1","doi-asserted-by":"crossref","first-page":"120","DOI":"10.1016\/j.nantod.2019.05.006","article-title":"The Fast and the Furious: Ultrafast Hot Electrons in Plasmonic Metastructures. 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