Tweaking the red emission, magneto, and dielectrical properties of perovskite type-LaFeO3 in the presence of Co substitution

2020 ◽  
Vol 31 (10) ◽  
pp. 7998-8014
Author(s):  
Ramesh Kumar Raji ◽  
Vishista Kurapati ◽  
Tholkappiyan Ramachandran ◽  
M. Muralidharan ◽  
R. Suriakarthick ◽  
...  
Keyword(s):  
Red Emission ◽  
Co Substitution ◽  
Dielectrical Properties ◽  
Perovskite Type

Novel Mn4+-activated layered oxide-fluoride perovskite-type KNaMoO2F4 red phosphor for wide gamut warm white light-emitting diodes backlight

2021 ◽  
Author(s):  
Jiao Wu ◽  
Bo Wang ◽  
Zhiyuan Liu ◽  
Kang Zhang ◽  
Xiaoshuang Li ◽  
...  
Keyword(s):  
Solid State ◽  
White Light ◽  
Light Emitting Diodes ◽  
Solid State Lighting ◽  
Red Phosphor ◽  
Red Emission ◽  
Light Emitting ◽  
Warm White Light ◽  
White Light Emitting Diodes ◽  
Perovskite Type

Mn4+-activated oxidefluoride phosphors are attractive for application in wide solid-state lighting devices because of its distinct red emission at about 630 nm and the abundant storage of Mn4+ ion. However,...

scholarly journals Novel hypophosphite hybrid perovskites of [CH3NH2NH2][Mn(H2POO)3] and [CH3NH2NH2][Mn(H2POO)2.83(HCOO)0.17] exhibiting antiferromagnetic order and red photoluminescence

RSC Advances ◽  
2020 ◽  
Vol 10 (32) ◽  
pp. 19020-19026 ◽  
Author(s):  
Mirosław Mączka ◽  
Anna Gągor ◽  
Adam Pikul ◽  
Dagmara Stefańska
Keyword(s):  
Metal Organic Framework ◽  
Antiferromagnetic Order ◽  
Red Emission ◽  
Metal Organic ◽  
Perovskite Type ◽  
Organic Framework

The first perovskite-type hypophosphite-linked dense metal–organic framework exhibiting red emission and antiferromagnetic order at 6.5 K.

Photoluminescence behavior of Al3+, Pr3+ doped perovskite La2/3TiO3 and pyrochlore La2Ti2O7

2001 ◽  
Vol 16 (9) ◽  
pp. 2568-2571 ◽  
Author(s):  
J. K. Park ◽  
C. H. Kim ◽  
K. J. Choi ◽  
H. D. Park ◽  
S. Y. Choi
Keyword(s):  
Energy Transfer ◽  
Charge Transfer ◽  
Charge Transfer Band ◽  
Critical Distance ◽  
Photoluminescence Properties ◽  
Red Emission ◽  
Pyrochlore Type ◽  
Perovskite Type ◽  
Photoluminescence Behavior

The purpose of this study is to develop an understanding of the photoluminescence properties of Al3+, Pr3+ doped perovskite-type La2/3TiO3 and pyrochlore-type La2Ti2O7 phosphor, which is characterized by the red emission (1D2 →3H4 transition) of the Pr3+ ion. The explanation for the energy transfer and the corresponding critical distance is proposed on the basis of the role of Al3+ ions in the perovskite-type La2/3TiO3:Pr phosphor. To clarify the distinction of photoluminescence properties between the perovskite-type La2/3TiO3 and the pyrochlore-type La2Ti2O7, the trap-involved process and the charge transfer band have been investigated, respectively.

ChemInform Abstract: Synthesis and Dielectrical Properties of Ternary Solutions PbScx/2Al(1- x)/2Nb1/2O3 with Metastable Perovskite-Type Structure.

ChemInform ◽  
2010 ◽  
Vol 25 (50) ◽  
pp. no-no
Author(s):  
N. M. OLEKHNOVICH ◽  
T. E. ZHABKO ◽  
A. N. SALAK ◽  
O. I. PASHKOVSKII ◽  
A. D. SHILIN ◽  
...  
Keyword(s):  
Type Structure ◽  
Ternary Solutions ◽  
Dielectrical Properties ◽  
Perovskite Type ◽  
Perovskite Type Structure

Colour Photometry of the Solar Corona of July 11, 1991

1994 ◽  
Vol 144 ◽  
pp. 597-599 ◽  
Author(s):  
I. V. Alexeyeva ◽  
N. L. Kroussanova ◽  
M. V. Streltsova
Keyword(s):  
Solar Corona ◽  
Red Emission ◽  
Coronal Structures

AbstractThe results of photometry of colour positives of the solar corona of July 11, 1991 are presented. Observations of the white corona were made without radial niters in Jojutla (Mexico). Dependences of coronal brightness on distance in the red (640 nm) and blue (420 nm) wavelength intervals are deduced for different coronal structures up to 3.0-3.5R⊙. The effect of ”reddening“ is noted. The excess of the red emission to the blue one (I640nm/I420nm) is found to be 1.20 and 1.17 at distance of 2.2R⊙for the N-E helmet streamer (P ≃ 37°) and the N-W region of low brightness (P ≃ 339°), respectively.

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