Red photoluminescence BCNO synthesized from graphene oxide nanosheets

Tuning functionalized hexagonal boron nitride quantum dots for full visible-light fluorescence emission

“…27 Qiu and Tang attempted to attribute BCNO emissions to electron–hole recombination, but they could not find sufficient evidence to support their claim. 28,29 Zeng et al explored the tuning mechanism of BCNO emissions using PBE calculations. 30 Their results indicate that the tunable emission stems from different sizes of carbon dots embedded in host h-BN lattices.…”

Hydrogen Peroxide-Assisted Ultrasonic Synthesis of BCNO QDs for Anthrax Biomarker Detection

“…1−6 In recent years, many strategies have been developed to regulate and optimize their luminescence mechanism, such as the closed-shell BO − and BO 2− anion-derived emission, 7 electron transition from nitrogen vacancy-induced emission which stems from carbon and oxygen impurity doping, 8 and intrinsic state emission and surface defect state emission. 9 However, the controlled synthesis and large-scale application of the BCNO nanomaterial are still at the initial stage of development. For example, BCNO nanosheets prepared by ultrasonic stripping with a sonic tip of bulk BCNO have been used in Cu 2+ detection.…”

“…As a typical rare earth-free boron nitride (BN)-based luminescence material, bulk boron carbon oxynitride (BCNO) phosphors have attracted extensive attentions owing to their nontoxicity, high quantum efficiency, and tunable emission wavelength via adjusting carbon content or calcination temperature. − In recent years, many strategies have been developed to regulate and optimize their luminescence mechanism, such as the closed-shell BO – and BO 2– anion-derived emission, electron transition from nitrogen vacancy-induced emission which stems from carbon and oxygen impurity doping, and intrinsic state emission and surface defect state emission . However, the controlled synthesis and large-scale application of the BCNO nanomaterial are still at the initial stage of development.…”

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

“…Several studies have been conducted concerning the attainment of red emission of the BCNO phosphor. [5][6][7][8] Our group successfully obtained near red emission ($571 nm) of BCNO by increasing the polyethylene glycol (PEG) fraction and decreasing the synthesis temperature (700 C). 6 The increased PEG fraction led to the presence of carbon defects in the crystal lattice of the BCNO phosphor through substitution or intercalation.…”

“…Kang et al, reported a broad emission (from 400-750 nm) by converting graphene oxide into a BCNO hybrid nanosheet. 8 The sheets may contain the BCNO, graphene quantum dots (GQDs), and graphene oxide. These three different chemical structures possess intrinsic state emission (electron-hole recombination, quantum size effect/ zig-zag sites) and defect state emission (surface energy traps) as a luminescence center.…”