barium yttrium
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2021 ◽  
pp. 211-214
Author(s):  
Vikram Awate ◽  
Lokeshwar Patel ◽  
Rashmi Sharma ◽  
A. K. Beliya ◽  
Ratnesh Tiwari ◽  
...  


Author(s):  
Padmaja Parameswaran Nampi ◽  
Alexander Vakurov ◽  
Hema Viswambharan ◽  
Jürgen E. Schneider ◽  
Rik Drummond-Brydson ◽  
...  


2019 ◽  
Vol 75 (11) ◽  
pp. 1488-1493
Author(s):  
Jean-Paul Laval ◽  
Abdelkrim Taoudi

The first ternary BaF2–Ln(Y)F3–ZrF4 phases crystallizing near the composition range of fluoride glasses, namely Ba4YZr3F23 (barium yttrium fluoridozirconate) and isotypic Ba4LnZr3F23 (Ln = Yb, Er and Nd), have been synthesized. The crystal structure of Ba4YZr3F23 cannot be correctly determined in the centrosymmetric space group Pnma (R1 = 0.09); it is preferably described in the noncentrosymmetric space group Pn21 a (R1 = 0.028). All cations are located at y = 0.25–0.29 and 0.75–0.79. This new structure type is formed by infinite {[YZr3F23]8−} n columns associating, along [001], YF9 tricapped trigonal prisms, ZrF8 dodecahedra and ZrF7 polyhedra. These columns are interconnected via BaF10+1 and BaF12 irregular polyhedra.





2019 ◽  
Vol 111 ◽  
pp. 163-168 ◽  
Author(s):  
Zhiwen Gao ◽  
Pengfei Sun ◽  
Yifan Zhong ◽  
Ruijin Yu ◽  
Bin Deng


Displays ◽  
2017 ◽  
Vol 48 ◽  
pp. 29-34 ◽  
Author(s):  
Sangmoon Park ◽  
Sena Koh ◽  
Hyuntae Kim


2015 ◽  
Vol 24 (9) ◽  
pp. 094216 ◽  
Author(s):  
En-Cai Ji ◽  
Qiang Liu ◽  
Ming-Ming Nie ◽  
Hui Luo ◽  
Yu-Xi Hu ◽  
...  


2013 ◽  
Vol 36 (2) ◽  
pp. 458-462 ◽  
Author(s):  
Yeojin Kim ◽  
Sangmoon Park


2010 ◽  
Vol 663-665 ◽  
pp. 328-331 ◽  
Author(s):  
Hai Yan Du ◽  
Wei Hang Zhang ◽  
Jia Yue Sun

Barium yttrium fluorides ( BaYF5 ) co-doped with Er3+ and Yb3+ were synthesized by the chemical co-precipitation method and the structural and optical properties of solution-processed Er3+/Yb3+ co-doped BaYF5 were characterized. Intense visible emissions centered at around 523, 546 and 658 nm, originated from the transitions of 2H11/2 → 4I15/2, 4S3/2 → 4I15/2, and 4F9/2 → 4I15/2 of Er3+, respectively, have been observed in samples upon excitation with a 980nm laser diode, and the involved mechanisms have been explained.



ChemInform ◽  
2010 ◽  
Vol 24 (17) ◽  
pp. no-no
Author(s):  
P. MIELE ◽  
J. D. FOULON ◽  
N. HOVNANIAN ◽  
L. COT


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