@article {Zhu:2008:0002-7820:1682, title = "High-Brightness LaPO4:Ce3+, Tb3+ Nanophosphors: Reductive Hydrothermal Synthesis and Photoluminescent Properties", journal = "Journal of the American Ceramic Society", parent_itemid = "infobike://bsc/jace", publishercode ="bp", year = "2008", volume = "91", number = "5", publication date ="2008-05-01T00:00:00", pages = "1682-1685", itemtype = "ARTICLE", issn = "0002-7820", eissn = "1551-2916", url = "https://www.ingentaconnect.com/content/bsc/jace/2008/00000091/00000005/art00046", doi = "doi:10.1111/j.1551-2916.2008.02320.x", author = "Zhu, Hongliang and Zhu, Enze and Yang, Hong and Wang, Lina and Jin, Dalai and Yao, Kuihong", abstract = "This paper definitely reveals that LaPO4:Ce3+, Tb3+ (LAP) nanophosphors prepared by normal hydrothermal method suffer significant loss of luminescence due to the oxidation of Ce3+Ce4+ at hydrothermal stage. To effectively protect Ce3+ from oxidation, a reductive hydrothermal process using hydrazine hydrate as a protecting agent is proposed to synthesize LAP nanophosphors with different Ce3+ and Tb3+ concentrations, which exhibited much stronger green photoluminescence (PL) and longer lifetime than the products prepared by normal hydrothermal method. Furthermore, the high-brightness LAP nanophosphors exhibited high-quenching concentration of Tb3+; the La0.4Ce0.4Tb0.2PO4 nanophosphor showed almost the same PL intensity as that of the commercially used La0.7Ce0.2Tb0.1PO4 bulk powder.", }