title: New SrAl2B2O7:Eu2+, Mn2+ phosphors for white light-emitting diodes.
abstract: A series of Eu(2+) and Mn(2+) co-doped SrAl(2)B(2)O(7) phosphors were prepared by solid-state reaction method. X-ray powder diffraction (XRD) and photoluminescence excitation and emission were employed to characterize the phosphors. The results show that energy transfers between Eu(2+)and Mn(2+) ions. As the content of Ca(2+) ions in Ca(x)Sr(0.92-x)Al(2)B(2)O(7):Eu(2+)(0.06), Mn(2+)(0.02) phosphors increased, the CIE coordinates decreased and close to the white color standard mandated by the National Television Standard Committee (NTSC). Meanwhile, a white LED (light-emitting diode) was fabricated by combining the Ca(0.5)Sr(0.42)Al(2)B(2)O(7):Eu(2+)(0.06), Mn(2+)(0.02) phosphors with a 370 nm InGaN chip. The color coordinate of the fabricated white LED was also close to the white color standard, indicating that the Ca(0.5)Sr(0.42)Al(2)B(2)O(7):Eu(2+)(0.06), Mn(2+)(0.02) phosphor is a promising single-host phosphor that can be used in white LEDs.
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning, China. zhouliyatf@163.com
authors.forename: Liya
authors.initials: L
authors.lastname: Zhou
authors.forename: Linghong
authors.initials: L
authors.lastname: Yi
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Feng
mesh_terms: D000535:Aluminum / Q000737:chemistry; D001895:Boron / Q000737:chemistry; D005063:Europium / Q000737:chemistry*; D049449:Luminescence; D049408:Luminescent Agents / Q000737:chemistry*; D008345:Manganese / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry; D010758:Phosphorus / Q000737:chemistry*; D013324:Strontium / Q000737:chemistry*
chemical_list: D049408:Luminescent Agents; D010087:Oxides; D010758:Phosphorus; D008345:Manganese; D005063:Europium; D000535:Aluminum; D001895:Boron; D013324:Strontium