Color tunable luminescence from LaAlO3:Bi3+, Ho3+ doped phosphors for field emission displays

Rao, T. K. Visweswara; Kamal, Ch. Satya; Samuel, Temesgen; Rao, Valluru Srinivasa; Rao, Vanukuru Srinivasa; Reddy, P. Venugopal; Rao, K. Ramachandra

doi:10.1007/s10854-017-8000-5

Cited by 7 publications

(2 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…9). T. K. Visweswara Rao et al 76 prepared LaAlO 3 :Bi 3+ ,Ho 3+ phosphors by the polyol mediated method, the phosphor not only has the blue emission of Bi 3+ , but also has the strong green emission of Ho 3+ . The efficient energy transfer from Bi 3+ to Ho 3+ in the LaAlO 3 host also produces color tunability from blue to cyan, which can be used as a field emission display device.…”

Section: Cyan Phosphor Systemmentioning

confidence: 99%

Research progress in cyan and blue phosphors

Liu

et al. 2022

New J. Chem.

View full text Add to dashboard Cite

show abstract

Section: Cyan Phosphor Systemmentioning

confidence: 99%

Research progress in cyan and blue phosphors

Liu

et al. 2022

New J. Chem.

View full text Add to dashboard Cite

show abstract

“…If the radius of the doping ion is close to La 3+ or Al 3+ , LaAlO 3 , an essential cubic perovskite oxide, can be doped with significant concentrations of ions through substitution [9][10][11][12]. Due to its strong optoelectronic capabilities, the B site held by Al 3+ can be replaced by transition metal ions to produce a variety of applications, including photodetector [13,14] and luminescent phosphor [15,16], which have been reported in numerous papers. Furthermore, due to its distinctively extended fluorescence lifespan and significant Stokes shift, LaAlO 3 is widely used in the field of luminous materials [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Structure and Optical Properties of Lanthanum Aluminate Perovskite through Nb5+ Doping

Liu,

Zou,

Chen

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

This work involves the introduction of niobium oxide into lanthanum aluminate (LaAlO3) via a conventional solid-state reaction technique to yield LaAlO3:Nb (LaNbxAl1−xO3+δ) samples with Nb5+ doping levels ranging from 0.00 to 0.25 mol%. This study presents a comprehensive investigation of the effects of niobium doping on the phase evolution, defect control, and reflectance of LaNbxAl1−xO3+δ powder. Powder X-ray diffraction (XRD) analysis confirms the perovskite structure in all powders, and XRD and transmission electron microscopy (TEM) reveal successful doping of Nb5+ into LaNbxAl1−xO3+δ. The surface morphology was analyzed by scanning electron microscopy (SEM), and the results show that increasing the doping concentration of niobium leads to fewer microstructural defects. Oxygen vacancy defects in different compositions are analyzed at 300 K, and as the doping level increases, a clear trend of defect reduction is observed. Notably, LaNbxAl1−xO3+δ with 0.15 mol% Nb5+ exhibits excellent reflectance properties, with a maximum infrared reflectance of 99.7%. This study shows that LaNbxAl1−xO3+δ powder materials have wide application potential in the field of high reflectivity coating materials due to their extremely low microstructural defects and oxygen vacancy defects.

show abstract