Preparation and characterization of boron oxide-based red-emitting phosphors using Eu, Al and Ca additives
2012; Elsevier BV; Volume: 133; Issue: 1 Linguagem: Inglês
10.1016/j.matchemphys.2012.01.047
ISSN1879-3312
AutoresTakashi Ogi, Yutaka Kisakibaru, Yutaka Kaihatsu, Wei‐Ning Wang, Muhammad Miftahul Munir, Kikuo Okuyama,
Tópico(s)Radiation Detection and Scintillator Technologies
ResumoAbstract New red-emitting phosphors have been produced and studied by investigating the effects of various additives such as europium (Eu), aluminum (Al), and calcium (Ca) on the photoluminescence performance of boron oxide-based phosphors. When both Eu and Ca ions were added, Ca 3 B 2 O 6 :Eu phosphors could be synthesized via a straightforward process using a liquid precursor. The photoluminescent spectra of Ca 3 B 2 O 6 :Eu phosphors exhibited a red emission at 611 nm under 254 nm excitation, and the internal quantum efficiency reached 41.5% when the concentration of Eu ion was fixed at an optimal condition of 0.13 M.
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