{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T00:55:47Z","timestamp":1759971347455,"version":"build-2065373602"},"reference-count":58,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2024,11,5]],"date-time":"2024-11-05T00:00:00Z","timestamp":1730764800000},"content-version":"vor","delay-in-days":4,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["analyticalsciencejournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Luminescence"],"published-print":{"date-parts":[[2024,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Lanthanum phosphate is a well\u2010known potential host for rare earth activators for phosphor\u2010converted white LED application. Na<jats:sup>+<\/jats:sup> and Bi<jats:sup>3+<\/jats:sup> codoped Eu<jats:sup>3+<\/jats:sup> activated LaPO<jats:sub>4<\/jats:sub> nanophosphor is successfully synthesized using citrate\u2010based hydrothermal method at ambient condition and confirmed by XRD, EDS and XPS analysis. The excitation spectra of the sample exhibit sharp f\u2010f characteristics peak of Eu<jats:sup>3+<\/jats:sup> at 393\u2009nm that is found to be the most dominant. The comparative photoluminescence studies of La<jats:sub>1\u2010x<\/jats:sub>PO<jats:sub>4<\/jats:sub>:xEu<jats:sup>3+<\/jats:sup>(<jats:italic>x<\/jats:italic>\u2009=\u20090.10), La<jats:sub>1\u2010x\u2010y<\/jats:sub> PO<jats:sub>4<\/jats:sub>:xEu<jats:sup>3+<\/jats:sup>, yNa<jats:sup>+<\/jats:sup>(<jats:italic>x<\/jats:italic>\u2009=\u20090.10, <jats:italic>y<\/jats:italic>\u2009=\u20090.05), and La<jats:sub>1\u2010x\u2010y\u2010z<\/jats:sub>PO<jats:sub>4<\/jats:sub>:xEu<jats:sup>3+<\/jats:sup>, yNa<jats:sup>+<\/jats:sup>, zBi<jats:sup>3+<\/jats:sup> (<jats:italic>x<\/jats:italic>\u2009=\u20090.10, <jats:italic>y<\/jats:italic>\u2009=\u2009<jats:italic>z<\/jats:italic>\u2009=\u20090.05) reveal a progressive enhancement of the orange emission from Eu<jats:sup>3+<\/jats:sup> as Na<jats:sup>+<\/jats:sup> and (Na<jats:sup>+<\/jats:sup>, Bi<jats:sup>3+<\/jats:sup>) ions are incorporated into the LaPO<jats:sub>4<\/jats:sub> matrix. The dominance of <jats:sup>5<\/jats:sup>D<jats:sub>0<\/jats:sub>\u2010<jats:sup>7<\/jats:sup>F<jats:sub>1<\/jats:sub> magnetic dipole transition contributing a major part of orange luminescence of the nanophosphors and the symmetric site occupancy of Eu<jats:sup>3+<\/jats:sup> was justified from the observed trend of  in the Judd\u2013Ofelt intensity parameters. The CIE studies confirm the improvement in color purity of emission from 32.5% to 90.6% due to the presence of Na<jats:sup>+<\/jats:sup> and Bi<jats:sup>3+<\/jats:sup>ions.<\/jats:p>","DOI":"10.1002\/bio.70010","type":"journal-article","created":{"date-parts":[[2024,11,6]],"date-time":"2024-11-06T02:44:51Z","timestamp":1730861091000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Spectral Investigation of Enhanced Orange Emission in Eu<sup>3+<\/sup> Activated LaPO<sub>4<\/sub> Nanophosphors Through Codoping With Na<sup>+<\/sup> and Bi<sup>3+<\/sup> Ions"],"prefix":"10.1002","volume":"39","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-0989-9071","authenticated-orcid":false,"given":"Chandran","family":"Aswathy\u00a0R","sequence":"first","affiliation":[{"name":"Department of Physics St. Berchmans College  Kottayam India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jacob","family":"Linju\u00a0Ann","sequence":"additional","affiliation":[{"name":"Department of Physics Baselius College  Kottayam India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paul","family":"Issac","sequence":"additional","affiliation":[{"name":"Department of Physics St. Berchmans College  Kottayam India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jose","family":"Gijo","sequence":"additional","affiliation":[{"name":"Department of Physics St. Berchmans College  Kottayam India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mathew","family":"Prijil","sequence":"additional","affiliation":[{"name":"Department of Physics Marian College, Kuttikkanam  Idukki Kerala India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sisira","family":"S","sequence":"additional","affiliation":[{"name":"Department of Physics Sree Narayana College  Palakkad India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,11,5]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.pmatsci.2019.100622"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.matlet.2018.07.012"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.materresbull.2016.12.035"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1007\/978\u20103\u2010642\u201079017\u20101_1"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/1521\u20103773(20010202)40:3<573::AID\u2010ANIE573>3.0.CO;2\u20100"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.matpr.2021.04.585"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1039\/c4ra06168c"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmatprotec.2007.07.041"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.inoche.2024.112888"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.5185\/amlett.2014.5572"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jlumin.2015.10.028"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.heliyon.2024.e34477"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.4236\/ojinm.2012.21001"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.matchemphys.2012.01.020"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jallcom.2013.08.091"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.1166\/jnn.2016.11884"},{"key":"e_1_2_10_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.solidstatesciences.2010.07.018"},{"key":"e_1_2_10_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.matchemphys.2014.06.027"},{"key":"e_1_2_10_20_1","doi-asserted-by":"publisher","DOI":"10.5185\/amlett.2014.amwc472"},{"key":"e_1_2_10_21_1","doi-asserted-by":"publisher","DOI":"10.4028\/www.scientific.net\/MSF.848.482"},{"key":"e_1_2_10_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jlumin.2015.04.013"},{"key":"e_1_2_10_23_1","doi-asserted-by":"publisher","DOI":"10.1142\/S1793604715500782"},{"key":"e_1_2_10_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.matlet.2014.09.058"},{"key":"e_1_2_10_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.materresbull.2007.01.006"},{"key":"e_1_2_10_26_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.scriptamat.2019.12.037"},{"key":"e_1_2_10_27_1","doi-asserted-by":"publisher","DOI":"10.1039\/c2dt32062b"},{"key":"e_1_2_10_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.mseb.2023.117008"},{"key":"e_1_2_10_29_1","doi-asserted-by":"publisher","DOI":"10.2138\/rmg.2002.48.4"},{"key":"e_1_2_10_30_1","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRev.56.978"},{"key":"e_1_2_10_31_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10854\u2010021\u201007615\u20106"},{"key":"e_1_2_10_32_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11664\u2010019\u201007193\u20108"},{"key":"e_1_2_10_33_1","doi-asserted-by":"publisher","DOI":"10.1039\/c9ra06331e"},{"key":"e_1_2_10_34_1","doi-asserted-by":"publisher","DOI":"10.1039\/c5ta03173g"},{"key":"e_1_2_10_35_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10854\u2010019\u201001483\u2010x"},{"key":"e_1_2_10_36_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jallcom.2020.156660"},{"key":"e_1_2_10_37_1","doi-asserted-by":"publisher","DOI":"10.1007\/s42452\u2010020\u20102873\u20102"},{"key":"e_1_2_10_38_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10854\u2010020\u201004746\u20100"},{"key":"e_1_2_10_39_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jallcom.2010.12.008"},{"key":"e_1_2_10_40_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.optmat.2015.11.027"},{"key":"e_1_2_10_41_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.matchemphys.2010.08.053"},{"key":"e_1_2_10_42_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.jpcc.7b06549"},{"key":"e_1_2_10_43_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.200400649"},{"key":"e_1_2_10_44_1","doi-asserted-by":"publisher","DOI":"10.1088\/1757\u2010899X\/1263\/1\/012006"},{"key":"e_1_2_10_45_1","doi-asserted-by":"publisher","DOI":"10.1039\/d0ra03073b"},{"key":"e_1_2_10_46_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jlumin.2017.12.002"},{"key":"e_1_2_10_47_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.optmat.2018.05.042"},{"key":"e_1_2_10_48_1","doi-asserted-by":"publisher","DOI":"10.1039\/c5ra09076h"},{"key":"e_1_2_10_49_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.jpcc.7b06549"},{"key":"e_1_2_10_50_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.optmat.2014.08.003"},{"key":"e_1_2_10_51_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jlumin.2020.117564"},{"key":"e_1_2_10_52_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jlumin.2006.05.010"},{"key":"e_1_2_10_53_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.1669896"},{"key":"e_1_2_10_54_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jlumin.2019.01.043"},{"key":"e_1_2_10_55_1","doi-asserted-by":"publisher","DOI":"10.1111\/jace.15691"},{"key":"e_1_2_10_56_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijleo.2020.164718"},{"key":"e_1_2_10_57_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jlumin.2016.11.068"},{"key":"e_1_2_10_58_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ceramint.2022.05.124"},{"key":"e_1_2_10_59_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.physb.2021.413186"}],"container-title":["Luminescence"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/analyticalsciencejournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/bio.70010","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T13:32:25Z","timestamp":1759930345000},"score":1,"resource":{"primary":{"URL":"https:\/\/analyticalsciencejournals.onlinelibrary.wiley.com\/doi\/10.1002\/bio.70010"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,11]]},"references-count":58,"journal-issue":{"issue":"11","published-print":{"date-parts":[[2024,11]]}},"alternative-id":["10.1002\/bio.70010"],"URL":"https:\/\/doi.org\/10.1002\/bio.70010","archive":["Portico"],"relation":{},"ISSN":["1522-7235","1522-7243"],"issn-type":[{"type":"print","value":"1522-7235"},{"type":"electronic","value":"1522-7243"}],"subject":[],"published":{"date-parts":[[2024,11]]},"assertion":[{"value":"2024-05-30","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-10-11","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-11-05","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e70010"}}