A red emitting of manganese-doped boron carbon oxynitride (BCNO) phosphor materials: facile approach and photoluminescence properties

作者：Nuryadin Bebeh W^*; Permatasari Fitri A; Nuryantini Ade Y; Faryuni Irfana D; Abdullah Mikrajuddin; Iskandar Ferry^*

来源：RSC Advances, 2017, 7(7): 4161-4166.

DOI：10.1039/c6ra27018b

BCNO (boron carbon oxynitride) phosphors have attracted attention due to their non toxicity, simple synthesis process, and high quantum efficiency. However, the tunable emission, particularly a red emission, is still challenging to achieve. In the present study, a bright red emission (emission wavelength 620 nm under 365 nm UV excitation) of a manganese-doped BCNO (BCNO: Mn) phosphor synthesized by a solid state method is reported. Without Mn-doping, the BCNO phosphor exhibited a bright blue emission that can be ascribed to the closed-shell BO- and BO2- anions that act as luminescence center. Via Mn-doping, a red emission was exhibited that can be ascribed to the T-4(1)((4)G) -> (6)A(1)(S-6) transition from a new luminescence center of Mn2+ incorporated into the BCNO host lattice. The optimum red PL properties (lambda(em): 611 nm, lambda(ex): 365 nm) were obtained with BCNO: Mn at a molar ratio of Mn/B at 0.71% mol/mol synthesized at 550 degrees C. We believe that the BCNO: Mn is a promising red-emitting phosphor for white light diodes.

• 出版日期2017