{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T04:54:21Z","timestamp":1787028861975,"version":"build-2736575974"},"reference-count":25,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T00:00:00Z","timestamp":1778198400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["62104004"],"award-info":[{"award-number":["62104004"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"award":["62104004"],"award-info":[{"award-number":["62104004"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Major Science and Technology Project of Anhui Province","award":["2021e03020007"],"award-info":[{"award-number":["2021e03020007"]}]},{"name":"Key Research and Development Plan of Anhui Province","award":["202104a05020048"],"award-info":[{"award-number":["202104a05020048"]}]},{"name":"Major Programs of Anhui Provincial Education Department","award":["2023AH050185"],"award-info":[{"award-number":["2023AH050185"]}]},{"name":"Anhui Jianzhu University Doctoral Startup Fund","award":["2020QDZ34"],"award-info":[{"award-number":["2020QDZ34"]}]},{"name":"Anhui Jianzhu University Doctoral Startup Fund","award":["2020QDZ12"],"award-info":[{"award-number":["2020QDZ12"]}]},{"name":"University Synergy Innovation Program of Anhui Province","award":["GXXT-2022-085"],"award-info":[{"award-number":["GXXT-2022-085"]}]},{"name":"University Synergy Innovation Program of Anhui Province","award":["GXXT-2023-067"],"award-info":[{"award-number":["GXXT-2023-067"]}]},{"name":"Anhui Research Center of Generic Technology in New Display Industry Open Project","award":["GTND2023KF01"],"award-info":[{"award-number":["GTND2023KF01"]}]},{"name":"Anhui Research Center of Generic Technology in New Display Industry Open Project","award":["GTND2025KF03"],"award-info":[{"award-number":["GTND2025KF03"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Poor moisture resistance represents a critical bottleneck restricting the practical application of K2TiF6:Mn4+ phosphors in white light-emitting diodes. In this work, phosphorous acid was employed as a reducing agent to eliminate surface Mn4+ species and passivate the phosphor surface, followed by ethanol-induced surface deposition. This approach successfully constructed a thick K2TiF6 matrix coating layer on the phosphor particles. After 6 h of water immersion, the treated phosphors maintained 88.1% of their initial fluorescence intensity; even after boiling treatment, the internal quantum yield still reached as high as 76.8%. WLED devices encapsulated with the modified phosphors exhibited outstanding stability during continuous operation for 432 h under high-temperature and high-humidity conditions. This effective surface modification strategy significantly broadens the application prospects of Mn4+-doped fluoride red phosphors in WLEDs.<\/jats:p>","DOI":"10.3390\/ma19101925","type":"journal-article","created":{"date-parts":[[2026,5,11]],"date-time":"2026-05-11T19:35:43Z","timestamp":1778528143000},"page":"1925","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Ethanol-Induced Deposition of a Passivation Layer to Enhance the Water Resistance and Luminescent Properties of K2TiF6: Mn4+ Phosphors"],"prefix":"10.3390","volume":"19","author":[{"given":"Haoyu","family":"Yang","sequence":"first","affiliation":[{"name":"School of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei 230601, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinhua","family":"Li","sequence":"additional","affiliation":[{"name":"School of Mathematics & Physics, Anhui Jianzhu University, Hefei 230601, China"},{"name":"Anhui Research Center of Generic Technology in New Display Industry, Hefei 230601, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yongyi","family":"Gu","sequence":"additional","affiliation":[{"name":"School of Mathematics & Physics, Anhui Jianzhu University, Hefei 230601, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sifei","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Mathematics & Physics, Anhui Jianzhu University, Hefei 230601, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xueyu","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei 230601, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinrong","family":"Tang","sequence":"additional","affiliation":[{"name":"School of Mathematics & Physics, Anhui Jianzhu University, Hefei 230601, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9795-1181","authenticated-orcid":false,"given":"Haiyan","family":"Xu","sequence":"additional","affiliation":[{"name":"School of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei 230601, China"},{"name":"Anhui Research Center of Generic Technology in New Display Industry, Hefei 230601, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,5,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2000648","DOI":"10.1002\/admt.202000648","article-title":"Rare earth-free luminescent materials for WLEDs: Recent Progress and Perspectives","volume":"6","author":"Zhang","year":"2021","journal-title":"Adv. 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Int."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"7443","DOI":"10.1039\/C6TC02254E","article-title":"Optical performance of Mn4+ in a new hexa-coordinated fluorozirconate complex of Cs2ZrF6","volume":"4","author":"Zhou","year":"2016","journal-title":"J. Mater. Chem. C"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"2480","DOI":"10.1039\/C6TC00502K","article-title":"Room-temperature synthesis and warm-white LED applications of Mn4+ ion doped fluoroa-luminate red phosphor Na3AlF6: Mn4+","volume":"4","author":"Song","year":"2016","journal-title":"J. Mater. Chem. C"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"11900","DOI":"10.1021\/acs.inorgchem.7b01890","article-title":"Resonance emission enhancement (REE) for narrow band red-emitting A2GeF6: Mn4+","volume":"56","author":"Lian","year":"2017","journal-title":"Inorg. 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