V.U.V absorption coefficient measurements of borate matrices

Enhanced efficiency in quantum confined YBO3:Tb3+ nanophosphor

“…As the excitation wavelength becomes short, the penetration depth is decreased due to large absorption coefficient [18][19][20] and the excitation volume from which photoluminescence is observed moves closer to the surface. Since the particle surface can substantially act as a defect or a source of non-radiative recombination routes, the larger surface area due to nanosized particles end result in diminished luminescent efficiency under VUV irradiation.…”

Photoluminescence of wet chemical process-derived (Y, Gd) BO3: Eu3+/Tb3+ thin film phosphors

“…Recently, phosphors based on orthoborates have attracted much attention due to their high stability, low synthesis temperature, high ultraviolet and optical damage threshold [9][10][11][12][13]. Rare earth orthoborates have been proved to be such useful host lattices for the luminescence of Eu 3+ and Tb 3+ , which have found wide applications in lamps and various kinds of display devices [13][14][15][16][17]. Mahiou and co-workers studied the relationship between the luminescence properties and the crystal structure of YBO 3 : Eu 3+ powder phosphor [11] and Boyer reported the waveguide properties of YBO 3 films [12].…”

Rare‐earth Based Insulating Nanocrystals: Improved Luminescent Nanophosphors for Plasma Display Panels

“…Therefore, there will be difference in penetration depth of the excitation photons of UV (254 nm) and VUV (147 nm). As the excitation wavelength becomes short, the penetration depth is decreased due to large absorption coefficient [61][62][63] and the excitation volume from which photoluminescence is observed moves closer to the surface. Since the particle surface can substantially act as a defect or a source of non-radiative recombination routes, the larger surface area due to nanosized particles end result in diminished luminescent efficiency under VUV irradiation.…”